TY  - JOUR
AU  - Simović, Anđela R.
AU  - Radojković, Bojana M.
AU  - Jegdić, Bore
AU  - Milojević, Milica
AU  - Bajat, Jelena B.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6933
AB  - This paper evaluated the inhibitory effect of Ce‐chloride and Na‐lactate
mixture on the AA2024 aluminum alloy in 0.1M NaCl solution. Electrochemical
impedance spectroscopy (EIS) was applied for testing the general
corrosion resistance, while potentiodynamic polarization measurement was
applied for determining the alloy pitting corrosion resistance in NaCl and
inhibitive solutions. The presence of cerium on the cathodic intermetallic
particles was confirmed by scanning electron microscope/energy‐dispersive
X‐ray spectroscopy analysis. The mixture of Ce‐chloride and Na‐lactate was a
more effective corrosion inhibitor than Ce‐chloride alone. The inhibitors
mixture is a mixed‐type corrosion inhibitor with a higher influence on slowing
down the cathodic reaction of oxygen reduction. The adsorption of the
inhibitor, the presence of cerium in different oxidation states (Ce3+ and Ce4+),
and lactate anion (C–C/C–H, C–OH, C═O, and O–C═O group) were confirmed
by X‐ray photoelectron spectroscopy analysis. A mechanism of inhibitor
adsorption on the surface of AA2024 alloy in NaCl solution was proposed.
PB  - Wiley
T2  - Materials and Corrosion
T1  - Cerium lactate as green corrosion inhibitor of AA2024 alloy
VL  - 74
IS  - 9
SP  - 1371
EP  - 1381
DO  - 10.1002/maco.202313882
ER  - 

@article{
author = "Simović, Anđela R. and Radojković, Bojana M. and Jegdić, Bore and Milojević, Milica and Bajat, Jelena B.",
year = "2023",
abstract = "This paper evaluated the inhibitory effect of Ce‐chloride and Na‐lactate
mixture on the AA2024 aluminum alloy in 0.1M NaCl solution. Electrochemical
impedance spectroscopy (EIS) was applied for testing the general
corrosion resistance, while potentiodynamic polarization measurement was
applied for determining the alloy pitting corrosion resistance in NaCl and
inhibitive solutions. The presence of cerium on the cathodic intermetallic
particles was confirmed by scanning electron microscope/energy‐dispersive
X‐ray spectroscopy analysis. The mixture of Ce‐chloride and Na‐lactate was a
more effective corrosion inhibitor than Ce‐chloride alone. The inhibitors
mixture is a mixed‐type corrosion inhibitor with a higher influence on slowing
down the cathodic reaction of oxygen reduction. The adsorption of the
inhibitor, the presence of cerium in different oxidation states (Ce3+ and Ce4+),
and lactate anion (C–C/C–H, C–OH, C═O, and O–C═O group) were confirmed
by X‐ray photoelectron spectroscopy analysis. A mechanism of inhibitor
adsorption on the surface of AA2024 alloy in NaCl solution was proposed.",
publisher = "Wiley",
journal = "Materials and Corrosion",
title = "Cerium lactate as green corrosion inhibitor of AA2024 alloy",
volume = "74",
number = "9",
pages = "1371-1381",
doi = "10.1002/maco.202313882"
}

Simović, A. R., Radojković, B. M., Jegdić, B., Milojević, M.,& Bajat, J. B.. (2023). Cerium lactate as green corrosion inhibitor of AA2024 alloy. in Materials and Corrosion
Wiley., 74(9), 1371-1381.
https://doi.org/10.1002/maco.202313882

Simović AR, Radojković BM, Jegdić B, Milojević M, Bajat JB. Cerium lactate as green corrosion inhibitor of AA2024 alloy. in Materials and Corrosion. 2023;74(9):1371-1381.
doi:10.1002/maco.202313882 .

Simović, Anđela R., Radojković, Bojana M., Jegdić, Bore, Milojević, Milica, Bajat, Jelena B., "Cerium lactate as green corrosion inhibitor of AA2024 alloy" in Materials and Corrosion, 74, no. 9 (2023):1371-1381,
https://doi.org/10.1002/maco.202313882 . .

Linić, S., Linić, M., Radojković, B., Jegdić, B.,& Lučanin, V.. (2023). Metoda i program PATS za detekciju oblasti izražene turbulencije kod prirodne konvekcije. .
https://hdl.handle.net/21.15107/rcub_cer_7233

Linić S, Linić M, Radojković B, Jegdić B, Lučanin V. Metoda i program PATS za detekciju oblasti izražene turbulencije kod prirodne konvekcije. 2023;.
https://hdl.handle.net/21.15107/rcub_cer_7233 .

Linić, Suzana, Linić, Mihajlo, Radojković, Bojana, Jegdić, Bore, Lučanin, Vojkan, "Metoda i program PATS za detekciju oblasti izražene turbulencije kod prirodne konvekcije" (2023),
https://hdl.handle.net/21.15107/rcub_cer_7233 .

TY  - JOUR
AU  - Radojković, Bojana
AU  - Jegdić, Bore
AU  - Pejić, Jovanka
AU  - Marunkić, Dunja
AU  - Simović, Anđela
AU  - Eraković Pantović, Sanja
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7227
AB  - The influence of welding current and nitrogen content in argon shielding gas on the resistance of the welded joint (weld metal and heat-affected zone [HAZ]) of the stainless steel X5CrNi18-10 to the formation and growth of pits was investigated. Also, the susceptibility of the welded joint to intergranular corrosion was examined. Pitting corrosion resistance indicators were determined based on anodic potentiodynamic polarization measurements in NaCl + Na2SO4 solution, while susceptibility to intergranular corrosion was determined by the potentiokinetic method with a double loop (DL EPR). SEM/EDS was used to analyze the microstructure. It has been shown that higher nitrogen content in shielding gas leads to an increase in the resistance of welded joints (weld metal and HAZ) to the pit formation. However, an improvement in the resistance to the pit formation leads to a decline in the resistance of the welded joint to pit growth. An explanation of this phenomenon is proposed. Also, it was shown that the increase of the welding current increases the susceptibility of the welded joint to intergranular corrosion, while the higher nitrogen content has no effect.
PB  - Wiley
T2  - Materials and Corrosion
T1  - Influence of nitrogen content on the pit formation and pit propagation in the welded joints of X5CrNi18‐10 stainless steel
DO  - 10.1002/maco.202314120
ER  - 

@article{
author = "Radojković, Bojana and Jegdić, Bore and Pejić, Jovanka and Marunkić, Dunja and Simović, Anđela and Eraković Pantović, Sanja",
year = "2023",
abstract = "The influence of welding current and nitrogen content in argon shielding gas on the resistance of the welded joint (weld metal and heat-affected zone [HAZ]) of the stainless steel X5CrNi18-10 to the formation and growth of pits was investigated. Also, the susceptibility of the welded joint to intergranular corrosion was examined. Pitting corrosion resistance indicators were determined based on anodic potentiodynamic polarization measurements in NaCl + Na2SO4 solution, while susceptibility to intergranular corrosion was determined by the potentiokinetic method with a double loop (DL EPR). SEM/EDS was used to analyze the microstructure. It has been shown that higher nitrogen content in shielding gas leads to an increase in the resistance of welded joints (weld metal and HAZ) to the pit formation. However, an improvement in the resistance to the pit formation leads to a decline in the resistance of the welded joint to pit growth. An explanation of this phenomenon is proposed. Also, it was shown that the increase of the welding current increases the susceptibility of the welded joint to intergranular corrosion, while the higher nitrogen content has no effect.",
publisher = "Wiley",
journal = "Materials and Corrosion",
title = "Influence of nitrogen content on the pit formation and pit propagation in the welded joints of X5CrNi18‐10 stainless steel",
doi = "10.1002/maco.202314120"
}

Radojković, B., Jegdić, B., Pejić, J., Marunkić, D., Simović, A.,& Eraković Pantović, S.. (2023). Influence of nitrogen content on the pit formation and pit propagation in the welded joints of X5CrNi18‐10 stainless steel. in Materials and Corrosion
Wiley..
https://doi.org/10.1002/maco.202314120

Radojković B, Jegdić B, Pejić J, Marunkić D, Simović A, Eraković Pantović S. Influence of nitrogen content on the pit formation and pit propagation in the welded joints of X5CrNi18‐10 stainless steel. in Materials and Corrosion. 2023;.
doi:10.1002/maco.202314120 .

Radojković, Bojana, Jegdić, Bore, Pejić, Jovanka, Marunkić, Dunja, Simović, Anđela, Eraković Pantović, Sanja, "Influence of nitrogen content on the pit formation and pit propagation in the welded joints of X5CrNi18‐10 stainless steel" in Materials and Corrosion (2023),
https://doi.org/10.1002/maco.202314120 . .

TY  - JOUR
AU  - Radojković, Bojana
AU  - Jegdić, Bore
AU  - Marunkić, Dunja
AU  - Pejić, Jovanka
AU  - Simović, Anđela
AU  - Ćosović, Vladan
AU  - Bajat, Jelena
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6938
AB  - This paper examined the degree of sensitization (DOS) to intergranular corrosion (IGC) and the level of electrical conductivity of the welded and non-welded AISI 304 stainless steel to obtain a suitable correlation. The DOS was determined by the double loop electrochemical potentiokinetic reactivation method (DL EPR), while the level of electrical conductivity was measured using a commercial device (non-destructive method). After electrochemical etching in oxalic acid, the microstructure of the specimen surface was analyzed by scanning electron microscopy (SEM). At DOS greater than ~ 0.5%, a clear linear dependence between the electrical conductivity and the value of the DOS was obtained, while there was a higher deviation from linearity for lower DOS values. The mentioned correlations were discussed in the sense of the precipitation kinetics of the Cr-carbide and the formation of Cr-depleted areas of different levels near the grain boundaries. Cr-depleted areas during anodic polarization measurements show lower resistance to pit formation. The presence of Cr-depleted areas in the vicinity of grain boundaries and the reduction of carbon content in the austenite crystal lattice increases the electrical conductivity of the stainless steel.
PB  - Springer Nature
PB  - The Korean Institute of Metals and Materials
T2  - Metals and Materials International
T1  - Non-Destructive Evaluation of the AISI 304 Stainless Steel Susceptibility to Intergranular Corrosion by Electrical Conductivity Measurements
DO  - https://doi.org/10.1007/s12540-023-01536-1
ER  - 

@article{
author = "Radojković, Bojana and Jegdić, Bore and Marunkić, Dunja and Pejić, Jovanka and Simović, Anđela and Ćosović, Vladan and Bajat, Jelena",
year = "2023",
abstract = "This paper examined the degree of sensitization (DOS) to intergranular corrosion (IGC) and the level of electrical conductivity of the welded and non-welded AISI 304 stainless steel to obtain a suitable correlation. The DOS was determined by the double loop electrochemical potentiokinetic reactivation method (DL EPR), while the level of electrical conductivity was measured using a commercial device (non-destructive method). After electrochemical etching in oxalic acid, the microstructure of the specimen surface was analyzed by scanning electron microscopy (SEM). At DOS greater than ~ 0.5%, a clear linear dependence between the electrical conductivity and the value of the DOS was obtained, while there was a higher deviation from linearity for lower DOS values. The mentioned correlations were discussed in the sense of the precipitation kinetics of the Cr-carbide and the formation of Cr-depleted areas of different levels near the grain boundaries. Cr-depleted areas during anodic polarization measurements show lower resistance to pit formation. The presence of Cr-depleted areas in the vicinity of grain boundaries and the reduction of carbon content in the austenite crystal lattice increases the electrical conductivity of the stainless steel.",
publisher = "Springer Nature, The Korean Institute of Metals and Materials",
journal = "Metals and Materials International",
title = "Non-Destructive Evaluation of the AISI 304 Stainless Steel Susceptibility to Intergranular Corrosion by Electrical Conductivity Measurements",
doi = "https://doi.org/10.1007/s12540-023-01536-1"
}

Radojković, B., Jegdić, B., Marunkić, D., Pejić, J., Simović, A., Ćosović, V.,& Bajat, J.. (2023). Non-Destructive Evaluation of the AISI 304 Stainless Steel Susceptibility to Intergranular Corrosion by Electrical Conductivity Measurements. in Metals and Materials International
Springer Nature..
https://doi.org/https://doi.org/10.1007/s12540-023-01536-1

Radojković B, Jegdić B, Marunkić D, Pejić J, Simović A, Ćosović V, Bajat J. Non-Destructive Evaluation of the AISI 304 Stainless Steel Susceptibility to Intergranular Corrosion by Electrical Conductivity Measurements. in Metals and Materials International. 2023;.
doi:https://doi.org/10.1007/s12540-023-01536-1 .

Radojković, Bojana, Jegdić, Bore, Marunkić, Dunja, Pejić, Jovanka, Simović, Anđela, Ćosović, Vladan, Bajat, Jelena, "Non-Destructive Evaluation of the AISI 304 Stainless Steel Susceptibility to Intergranular Corrosion by Electrical Conductivity Measurements" in Metals and Materials International (2023),
https://doi.org/https://doi.org/10.1007/s12540-023-01536-1 . .

TY  - JOUR
AU  - Radojković, Bojana
AU  - Pejić, Jovanka N.
AU  - Marunkić, Dunja
AU  - Simović, Anđela
AU  - Eraković Pantović, Sanja
AU  - Jegdić, Bore
AU  - Bajat, Jelena
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7089
AB  - The AISI 304 (X5CrNi19‐10) stainless steel is widely used for the production of
various metal parts in power plants. A procedure for testing the influence
of the dust from a power plant on resistance to general and pitting corrosion of
the AISI 304 stainless steel is developed and performed. The quantitative (XRD
method) and qualitative (Fourier–transform infrared spectroscopy [FTIR]
method) composition of the dust present in the power plant is determined.
Applying the Mott–Schottky method, the properties of the passive layer are
analyzed, while a degree of chromium depletion of the grain boundary is
determined by the electrochemical potentiokinetic reactivation method with
double loop method. Values of polarization resistance (linear polarization
resistance and electrochemical impedance spectroscopy methods) and the
corrosion current density (polarization measurements) indicate that the
stainless steel has a higher resistance to general corrosion in the dust solutions
than in the etalon solution. Also, based on the measured value of the pitting
potential (Epit) and the difference between the values of the pitting potential
and the corrosion potential (Epit – Ecorr), it can be seen that stainless steel has a
higher resistance to localized types of corrosion, such as pitting corrosion, in
dust solutions than in the etalon solution.
PB  - Willey
T2  - Materials and Corrosion
T1  - Corrosion of metal parts in the power plant
VL  - 74
IS  - 10
SP  - 1499
EP  - 1513
DO  - 10.1002/maco.202313919
ER  - 

@article{
author = "Radojković, Bojana and Pejić, Jovanka N. and Marunkić, Dunja and Simović, Anđela and Eraković Pantović, Sanja and Jegdić, Bore and Bajat, Jelena",
year = "2023",
abstract = "The AISI 304 (X5CrNi19‐10) stainless steel is widely used for the production of
various metal parts in power plants. A procedure for testing the influence
of the dust from a power plant on resistance to general and pitting corrosion of
the AISI 304 stainless steel is developed and performed. The quantitative (XRD
method) and qualitative (Fourier–transform infrared spectroscopy [FTIR]
method) composition of the dust present in the power plant is determined.
Applying the Mott–Schottky method, the properties of the passive layer are
analyzed, while a degree of chromium depletion of the grain boundary is
determined by the electrochemical potentiokinetic reactivation method with
double loop method. Values of polarization resistance (linear polarization
resistance and electrochemical impedance spectroscopy methods) and the
corrosion current density (polarization measurements) indicate that the
stainless steel has a higher resistance to general corrosion in the dust solutions
than in the etalon solution. Also, based on the measured value of the pitting
potential (Epit) and the difference between the values of the pitting potential
and the corrosion potential (Epit – Ecorr), it can be seen that stainless steel has a
higher resistance to localized types of corrosion, such as pitting corrosion, in
dust solutions than in the etalon solution.",
publisher = "Willey",
journal = "Materials and Corrosion",
title = "Corrosion of metal parts in the power plant",
volume = "74",
number = "10",
pages = "1499-1513",
doi = "10.1002/maco.202313919"
}

Radojković, B., Pejić, J. N., Marunkić, D., Simović, A., Eraković Pantović, S., Jegdić, B.,& Bajat, J.. (2023). Corrosion of metal parts in the power plant. in Materials and Corrosion
Willey., 74(10), 1499-1513.
https://doi.org/10.1002/maco.202313919

Radojković B, Pejić JN, Marunkić D, Simović A, Eraković Pantović S, Jegdić B, Bajat J. Corrosion of metal parts in the power plant. in Materials and Corrosion. 2023;74(10):1499-1513.
doi:10.1002/maco.202313919 .

Radojković, Bojana, Pejić, Jovanka N., Marunkić, Dunja, Simović, Anđela, Eraković Pantović, Sanja, Jegdić, Bore, Bajat, Jelena, "Corrosion of metal parts in the power plant" in Materials and Corrosion, 74, no. 10 (2023):1499-1513,
https://doi.org/10.1002/maco.202313919 . .

TY  - CONF
AU  - Radojković, Bojana M.
AU  - Jegdić, Bore
AU  - Marunkić, Dunja D.
AU  - Pejić, Jovanka N.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5500
AB  - The efficacy of the environmentally friendly corrosion inhibitor Ce-citrate (0.1-0.5 mM) was analyzed on AISI 4130 low alloy carbon steel and AA7075 aluminum alloy in 0.05 M NaCl solution. Measurements of resistance to general corrosion were performed by electrochemical impedance spectroscopy and potentiodynamic polarization test. Resistance to pitting corrosion is determined based on the value of pitting potential Epit. For comparison, corrosion resistance measurements and pitting potential determination, for considered alloys, were performed in Ce-chloride solution. Changes on the surface of the specimens after corrosion testing were analyzed by SEM microscopy. The XPS method was used for the analyses of the formed inhibitory layer on the steel specimen surface. It has been shown that significant amounts of cerium, as well as the citrate anions, are present in the inhibitory layer. Ce-citrates have proved to be an effective corrosion inhibitor for AISI 4130 steel as well as an effective pitting corrosion inhibitor for AA7075 aluminum alloy. The mechanism of action of Ce-citrate on AISI 4130 steel and AA7075 aluminum alloy has been proposed.
T1  - Ce-citrate as green corrosion inhibitor for low alloy steel and aluminium alloys
UR  - https://hdl.handle.net/21.15107/rcub_cer_5500
ER  - 

@conference{
author = "Radojković, Bojana M. and Jegdić, Bore and Marunkić, Dunja D. and Pejić, Jovanka N.",
year = "2022",
abstract = "The efficacy of the environmentally friendly corrosion inhibitor Ce-citrate (0.1-0.5 mM) was analyzed on AISI 4130 low alloy carbon steel and AA7075 aluminum alloy in 0.05 M NaCl solution. Measurements of resistance to general corrosion were performed by electrochemical impedance spectroscopy and potentiodynamic polarization test. Resistance to pitting corrosion is determined based on the value of pitting potential Epit. For comparison, corrosion resistance measurements and pitting potential determination, for considered alloys, were performed in Ce-chloride solution. Changes on the surface of the specimens after corrosion testing were analyzed by SEM microscopy. The XPS method was used for the analyses of the formed inhibitory layer on the steel specimen surface. It has been shown that significant amounts of cerium, as well as the citrate anions, are present in the inhibitory layer. Ce-citrates have proved to be an effective corrosion inhibitor for AISI 4130 steel as well as an effective pitting corrosion inhibitor for AA7075 aluminum alloy. The mechanism of action of Ce-citrate on AISI 4130 steel and AA7075 aluminum alloy has been proposed.",
title = "Ce-citrate as green corrosion inhibitor for low alloy steel and aluminium alloys",
url = "https://hdl.handle.net/21.15107/rcub_cer_5500"
}

Radojković, B. M., Jegdić, B., Marunkić, D. D.,& Pejić, J. N.. (2022). Ce-citrate as green corrosion inhibitor for low alloy steel and aluminium alloys. .
https://hdl.handle.net/21.15107/rcub_cer_5500

Radojković BM, Jegdić B, Marunkić DD, Pejić JN. Ce-citrate as green corrosion inhibitor for low alloy steel and aluminium alloys. 2022;.
https://hdl.handle.net/21.15107/rcub_cer_5500 .

Radojković, Bojana M., Jegdić, Bore, Marunkić, Dunja D., Pejić, Jovanka N., "Ce-citrate as green corrosion inhibitor for low alloy steel and aluminium alloys" (2022),
https://hdl.handle.net/21.15107/rcub_cer_5500 .

TY  - CONF
AU  - Pejić, Jovanka N.
AU  - Radojković, Bojana M.
AU  - Jegdić, Bore
AU  - Simović, Anđela R.
AU  - Marunkić, Dunja D.
AU  - Bajat, Jelena B.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5453
AB  - The synergistic effect of neodymium chloride and cysteine in NaCl solution was investigated. The concentration ratio of these two inhibitors was 1:3 (neodymium: cysteine). The corrosion resistance of AA7075 alloy was tested electrochemically using electrochemical impedance spectroscopy (EIS). Significantly higher polarization resistance in inhibitor-containing solution, along with phase angle peak shift to more negative values, indicate good corrosion inhibition by Nd-cysteine. The morphology, analyzed by scanning electron microscopy (SEM/EDS), showed that the surface of the AA7075 alloy was wholly protected from corrosion after 24h in NaCl solution.
PB  - Belgrade: Serbian Chemical Society
C3  - Book of Abstracts, Proceedings - 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, June 9-10, 2022 / Kratki izvodi radova, kjniga radova - 58. Savetovanje Srpskog hemijskog društva, Beograd 9. i 10. jun 2022. godine
T1  - Синергетско дејство неодијума и цистеина на легури АА7075 у раствору NaCl
T1  - Synergistic effect of Neodymium and Cysteine as inhibitors for AA7075 alloy in NaCl solution
VL  - 58
SP  - 196
EP  - 199
UR  - https://hdl.handle.net/21.15107/rcub_cer_5453
ER  - 

@conference{
author = "Pejić, Jovanka N. and Radojković, Bojana M. and Jegdić, Bore and Simović, Anđela R. and Marunkić, Dunja D. and Bajat, Jelena B.",
year = "2022",
abstract = "The synergistic effect of neodymium chloride and cysteine in NaCl solution was investigated. The concentration ratio of these two inhibitors was 1:3 (neodymium: cysteine). The corrosion resistance of AA7075 alloy was tested electrochemically using electrochemical impedance spectroscopy (EIS). Significantly higher polarization resistance in inhibitor-containing solution, along with phase angle peak shift to more negative values, indicate good corrosion inhibition by Nd-cysteine. The morphology, analyzed by scanning electron microscopy (SEM/EDS), showed that the surface of the AA7075 alloy was wholly protected from corrosion after 24h in NaCl solution.",
publisher = "Belgrade: Serbian Chemical Society",
journal = "Book of Abstracts, Proceedings - 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, June 9-10, 2022 / Kratki izvodi radova, kjniga radova - 58. Savetovanje Srpskog hemijskog društva, Beograd 9. i 10. jun 2022. godine",
title = "Синергетско дејство неодијума и цистеина на легури АА7075 у раствору NaCl, Synergistic effect of Neodymium and Cysteine as inhibitors for AA7075 alloy in NaCl solution",
volume = "58",
pages = "196-199",
url = "https://hdl.handle.net/21.15107/rcub_cer_5453"
}

Pejić, J. N., Radojković, B. M., Jegdić, B., Simović, A. R., Marunkić, D. D.,& Bajat, J. B.. (2022). Синергетско дејство неодијума и цистеина на легури АА7075 у раствору NaCl. in Book of Abstracts, Proceedings - 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, June 9-10, 2022 / Kratki izvodi radova, kjniga radova - 58. Savetovanje Srpskog hemijskog društva, Beograd 9. i 10. jun 2022. godine
Belgrade: Serbian Chemical Society., 58, 196-199.
https://hdl.handle.net/21.15107/rcub_cer_5453

Pejić JN, Radojković BM, Jegdić B, Simović AR, Marunkić DD, Bajat JB. Синергетско дејство неодијума и цистеина на легури АА7075 у раствору NaCl. in Book of Abstracts, Proceedings - 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, June 9-10, 2022 / Kratki izvodi radova, kjniga radova - 58. Savetovanje Srpskog hemijskog društva, Beograd 9. i 10. jun 2022. godine. 2022;58:196-199.
https://hdl.handle.net/21.15107/rcub_cer_5453 .

Pejić, Jovanka N., Radojković, Bojana M., Jegdić, Bore, Simović, Anđela R., Marunkić, Dunja D., Bajat, Jelena B., "Синергетско дејство неодијума и цистеина на легури АА7075 у раствору NaCl" in Book of Abstracts, Proceedings - 58th Meeting of the Serbian Chemical Society, Belgrade, Serbia, June 9-10, 2022 / Kratki izvodi radova, kjniga radova - 58. Savetovanje Srpskog hemijskog društva, Beograd 9. i 10. jun 2022. godine, 58 (2022):196-199,
https://hdl.handle.net/21.15107/rcub_cer_5453 .

TY  - CONF
AU  - Pejić, Jovanka N.
AU  - Radojković, Bojana M.
AU  - Simović, Anđela R.
AU  - Marunkić, Dunja D.
AU  - Jegdić, Bore
AU  - Pavlović, Miroslav M.
AU  - Bajat, Jelena B.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5447
AB  - The aim of this study was to investigate environmentally-friendly corrosion inhibitors based on the cerium-cysteine and their effect on 7xxx series aluminum alloy. The cysteine and cerium-cysteine complex structures were analyzed by Fourier-Transform Infrared spectroscopy (FTIR). The structure of cerium-cysteine was additionally determined using Nuclear Magnetic Resonance (NMR) and Elemental Analysis. Inhibitors efficiency was analyzed with Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic polarization techniques in 0.1M NaCl at room temperature, while Scanning Electron Microscopy analyzed the surface appearance and microstructure of the tested aluminum alloy with Energy Dispersive Spectroscopy (SEM / EDS) and Optical Microscope (OM). Different amounts of cysteine were examined in order to find an optimal concentration of inhibitor. The adsorption of the inhibitors followed the Langmuir isotherm, and based on the EIS results and calculated thermodynamic potential (Gibbs free energy), cysteine and cerium-cysteine proved to be good inhibitors for tested aluminum alloy. The optimal cysteine concentration of 0.06 mM as a corrosion inhibitor of 7xxx series aluminum alloy was determined. EIS diagrams confirmed that cysteine showed better inhibition than Ce-Cys complex.
PB  - The Serbian Society of Corrosion and Materials Protection
C3  - Proceedings - XXIII YuCorr International Conference, May 16-19, 2022, Divčibare, Serbia
T1  - Green Corrosion Inhibitors with Cysteine and Cerium-Cysteine Complex on 7000 series Aluminum Alloy
T1  - Zeleni inhibitori korozije sa cisteinom i kompleksom cerijum-cisteina na 7000 seriji  aluminijumske legure
VL  - 23
SP  - Poster-48
UR  - https://hdl.handle.net/21.15107/rcub_cer_5447
ER  - 

@conference{
author = "Pejić, Jovanka N. and Radojković, Bojana M. and Simović, Anđela R. and Marunkić, Dunja D. and Jegdić, Bore and Pavlović, Miroslav M. and Bajat, Jelena B.",
year = "2022",
abstract = "The aim of this study was to investigate environmentally-friendly corrosion inhibitors based on the cerium-cysteine and their effect on 7xxx series aluminum alloy. The cysteine and cerium-cysteine complex structures were analyzed by Fourier-Transform Infrared spectroscopy (FTIR). The structure of cerium-cysteine was additionally determined using Nuclear Magnetic Resonance (NMR) and Elemental Analysis. Inhibitors efficiency was analyzed with Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic polarization techniques in 0.1M NaCl at room temperature, while Scanning Electron Microscopy analyzed the surface appearance and microstructure of the tested aluminum alloy with Energy Dispersive Spectroscopy (SEM / EDS) and Optical Microscope (OM). Different amounts of cysteine were examined in order to find an optimal concentration of inhibitor. The adsorption of the inhibitors followed the Langmuir isotherm, and based on the EIS results and calculated thermodynamic potential (Gibbs free energy), cysteine and cerium-cysteine proved to be good inhibitors for tested aluminum alloy. The optimal cysteine concentration of 0.06 mM as a corrosion inhibitor of 7xxx series aluminum alloy was determined. EIS diagrams confirmed that cysteine showed better inhibition than Ce-Cys complex.",
publisher = "The Serbian Society of Corrosion and Materials Protection",
journal = "Proceedings - XXIII YuCorr International Conference, May 16-19, 2022, Divčibare, Serbia",
title = "Green Corrosion Inhibitors with Cysteine and Cerium-Cysteine Complex on 7000 series Aluminum Alloy, Zeleni inhibitori korozije sa cisteinom i kompleksom cerijum-cisteina na 7000 seriji  aluminijumske legure",
volume = "23",
pages = "Poster-48",
url = "https://hdl.handle.net/21.15107/rcub_cer_5447"
}

Pejić, J. N., Radojković, B. M., Simović, A. R., Marunkić, D. D., Jegdić, B., Pavlović, M. M.,& Bajat, J. B.. (2022). Green Corrosion Inhibitors with Cysteine and Cerium-Cysteine Complex on 7000 series Aluminum Alloy. in Proceedings - XXIII YuCorr International Conference, May 16-19, 2022, Divčibare, Serbia
The Serbian Society of Corrosion and Materials Protection., 23, Poster-48.
https://hdl.handle.net/21.15107/rcub_cer_5447

Pejić JN, Radojković BM, Simović AR, Marunkić DD, Jegdić B, Pavlović MM, Bajat JB. Green Corrosion Inhibitors with Cysteine and Cerium-Cysteine Complex on 7000 series Aluminum Alloy. in Proceedings - XXIII YuCorr International Conference, May 16-19, 2022, Divčibare, Serbia. 2022;23:Poster-48.
https://hdl.handle.net/21.15107/rcub_cer_5447 .

Pejić, Jovanka N., Radojković, Bojana M., Simović, Anđela R., Marunkić, Dunja D., Jegdić, Bore, Pavlović, Miroslav M., Bajat, Jelena B., "Green Corrosion Inhibitors with Cysteine and Cerium-Cysteine Complex on 7000 series Aluminum Alloy" in Proceedings - XXIII YuCorr International Conference, May 16-19, 2022, Divčibare, Serbia, 23 (2022):Poster-48,
https://hdl.handle.net/21.15107/rcub_cer_5447 .

TY  - CONF
AU  - Radojković, Bojana M.
AU  - Marunkić, Dunja D.
AU  - Pejić, Jovanka N.
AU  - Milošević, Milena D.
AU  - Jegdić, Bore
AU  - Marinković, Aleksandar D.
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5436
AB  - The corrosion protective properties of environmentally friendly Ce-citrate were analyzed on AISI 4130 low alloy carbon steel and AA7075 aluminum alloy in 0.05 M NaCl solution. For this purpose different concentrations of corrosion inhibitor were analyzed in the range of 0.1-0.5 mM. Electrochemical impedance spectroscopy and potentiodynamic polarization test were used for measurements of resistance to general corrosion. Pitting potential Epit value was used for the determination of resistance to pitting corrosion. Additionally, corrosion resistance measurements and determination of pitting potential value were performed in Ce-chloride solution with the aim of comparation. SEM microscopy was used for the determination of changes on the surface of the specimens after corrosion testing. The XPS method was used for the analyses of the formed inhibitory layer on the steel specimen surface. It has been shown that significant amounts of cerium, as well as the citrate anions, are present in the inhibitory layer. Ce-citrates have proved to be an effective corrosion inhibitor for AISI 4130 steel as well as an effective pitting corrosion inhibitor for AA7075 aluminum alloy. The mechanism of action of Ce-citrate on AISI 4130 steel and AA7075 aluminum alloy has been proposed.
PB  - Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection (Uiskozam)
C3  - Proceeding - XXIII YuCorr International Conference
T1  - Ecologically friendly corrosion inhibitor for low alloy steels and aluminium alloys
VL  - 23
SP  - 43
EP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_cer_5436
ER  - 

@conference{
author = "Radojković, Bojana M. and Marunkić, Dunja D. and Pejić, Jovanka N. and Milošević, Milena D. and Jegdić, Bore and Marinković, Aleksandar D.",
year = "2022",
abstract = "The corrosion protective properties of environmentally friendly Ce-citrate were analyzed on AISI 4130 low alloy carbon steel and AA7075 aluminum alloy in 0.05 M NaCl solution. For this purpose different concentrations of corrosion inhibitor were analyzed in the range of 0.1-0.5 mM. Electrochemical impedance spectroscopy and potentiodynamic polarization test were used for measurements of resistance to general corrosion. Pitting potential Epit value was used for the determination of resistance to pitting corrosion. Additionally, corrosion resistance measurements and determination of pitting potential value were performed in Ce-chloride solution with the aim of comparation. SEM microscopy was used for the determination of changes on the surface of the specimens after corrosion testing. The XPS method was used for the analyses of the formed inhibitory layer on the steel specimen surface. It has been shown that significant amounts of cerium, as well as the citrate anions, are present in the inhibitory layer. Ce-citrates have proved to be an effective corrosion inhibitor for AISI 4130 steel as well as an effective pitting corrosion inhibitor for AA7075 aluminum alloy. The mechanism of action of Ce-citrate on AISI 4130 steel and AA7075 aluminum alloy has been proposed.",
publisher = "Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection (Uiskozam)",
journal = "Proceeding - XXIII YuCorr International Conference",
title = "Ecologically friendly corrosion inhibitor for low alloy steels and aluminium alloys",
volume = "23",
pages = "43-51",
url = "https://hdl.handle.net/21.15107/rcub_cer_5436"
}

Radojković, B. M., Marunkić, D. D., Pejić, J. N., Milošević, M. D., Jegdić, B.,& Marinković, A. D.. (2022). Ecologically friendly corrosion inhibitor for low alloy steels and aluminium alloys. in Proceeding - XXIII YuCorr International Conference
Belgrade, Serbia : Serbian Society of Corrosion and Materials Protection (Uiskozam)., 23, 43-51.
https://hdl.handle.net/21.15107/rcub_cer_5436

Radojković BM, Marunkić DD, Pejić JN, Milošević MD, Jegdić B, Marinković AD. Ecologically friendly corrosion inhibitor for low alloy steels and aluminium alloys. in Proceeding - XXIII YuCorr International Conference. 2022;23:43-51.
https://hdl.handle.net/21.15107/rcub_cer_5436 .

Radojković, Bojana M., Marunkić, Dunja D., Pejić, Jovanka N., Milošević, Milena D., Jegdić, Bore, Marinković, Aleksandar D., "Ecologically friendly corrosion inhibitor for low alloy steels and aluminium alloys" in Proceeding - XXIII YuCorr International Conference, 23 (2022):43-51,
https://hdl.handle.net/21.15107/rcub_cer_5436 .

TY  - JOUR
AU  - Pejić, Jovanka N.
AU  - Radojković, Bojana M.
AU  - Marunkić, Dunja D.
AU  - Jegdić, Bore
AU  - Stevanović, Sanja
AU  - Milošević, Milena D.
AU  - Bajat, Jelena
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5435
AB  - The inhibitory effect of cysteine in the presence of selected lanthanide chlorides (LaCl3, NdCl3, and CeCl3) in a neutral 0.1M NaCl solution was analyzed. The cysteine concentration of 0.3mMwas determined as an optimal one. The resistance to general and pitting corrosion of AA7075‐T6 alloy in inhibitive solutions was determined using electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The surface appearance of the aluminum alloy was determined before and after corrosion tests using scanning electron microscopy/energy dispersive spectroscopy, while the presence of an inhibitory layer on the alloy surface was confirmed by X‐ray photoelectron spectroscopy analysis and atomic force microscopy. The inhibitory effect of cysteine was significantly higher in the presence of all tested lanthanide chlorides, especially to pitting corrosion. The protective ability of cysteine was increased by lanthanides in the following sequence: Ln<Nd <Ce ions. The inhibitory effect of cysteine in the presence of cerium ions was examined in more detail as cerium ions provided the highest inhibitory effect, both to general and pitting corrosion.
PB  - Weinheim, Germany : Wiley‐VCH GmbH.
T2  - Materials and Corrosion
T1  - Inhibitory effect of cysteine and lanthanides on AA7075‐T6 in neutral NaCl solution
VL  - 73
IS  - 11
SP  - 1800
EP  - 1812
DO  - 10.1002/maco.202213330
ER  - 

@article{
author = "Pejić, Jovanka N. and Radojković, Bojana M. and Marunkić, Dunja D. and Jegdić, Bore and Stevanović, Sanja and Milošević, Milena D. and Bajat, Jelena",
year = "2022",
abstract = "The inhibitory effect of cysteine in the presence of selected lanthanide chlorides (LaCl3, NdCl3, and CeCl3) in a neutral 0.1M NaCl solution was analyzed. The cysteine concentration of 0.3mMwas determined as an optimal one. The resistance to general and pitting corrosion of AA7075‐T6 alloy in inhibitive solutions was determined using electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The surface appearance of the aluminum alloy was determined before and after corrosion tests using scanning electron microscopy/energy dispersive spectroscopy, while the presence of an inhibitory layer on the alloy surface was confirmed by X‐ray photoelectron spectroscopy analysis and atomic force microscopy. The inhibitory effect of cysteine was significantly higher in the presence of all tested lanthanide chlorides, especially to pitting corrosion. The protective ability of cysteine was increased by lanthanides in the following sequence: Ln<Nd <Ce ions. The inhibitory effect of cysteine in the presence of cerium ions was examined in more detail as cerium ions provided the highest inhibitory effect, both to general and pitting corrosion.",
publisher = "Weinheim, Germany : Wiley‐VCH GmbH.",
journal = "Materials and Corrosion",
title = "Inhibitory effect of cysteine and lanthanides on AA7075‐T6 in neutral NaCl solution",
volume = "73",
number = "11",
pages = "1800-1812",
doi = "10.1002/maco.202213330"
}

Pejić, J. N., Radojković, B. M., Marunkić, D. D., Jegdić, B., Stevanović, S., Milošević, M. D.,& Bajat, J.. (2022). Inhibitory effect of cysteine and lanthanides on AA7075‐T6 in neutral NaCl solution. in Materials and Corrosion
Weinheim, Germany : Wiley‐VCH GmbH.., 73(11), 1800-1812.
https://doi.org/10.1002/maco.202213330

Pejić JN, Radojković BM, Marunkić DD, Jegdić B, Stevanović S, Milošević MD, Bajat J. Inhibitory effect of cysteine and lanthanides on AA7075‐T6 in neutral NaCl solution. in Materials and Corrosion. 2022;73(11):1800-1812.
doi:10.1002/maco.202213330 .

Pejić, Jovanka N., Radojković, Bojana M., Marunkić, Dunja D., Jegdić, Bore, Stevanović, Sanja, Milošević, Milena D., Bajat, Jelena, "Inhibitory effect of cysteine and lanthanides on AA7075‐T6 in neutral NaCl solution" in Materials and Corrosion, 73, no. 11 (2022):1800-1812,
https://doi.org/10.1002/maco.202213330 . .

TY  - JOUR
AU  - Radojković, Bojana
AU  - Marunkić, Dunja
AU  - Milošević, Milena
AU  - Grubišić, Sonja
AU  - Pejić, Jovanka
AU  - Jegdić, Bore
AU  - Marinković, Aleksandar
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5244
AB  - Green corrosion inhibitors, Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate, were tested in NaCl solution with the aim to evaluate their inhibitory effect on 7049 aluminum alloy and to propose a mechanism of their inhibitive action. Corrosion properties of the formed inhibitor layer were analyzed using electrochemical impedance spectroscopy, while the pit formation resistance was analyzed using potentiodynamic polarization tests. Morphology of the formed pits was evaluated by scanning electron microscope/energy-dispersive spectroscopy analysis. It was shown that Ce(III) propionate in NaCl solution has a noticeably higher protective ability than Ce(III) chloride and Ce(III) nitrate. The presence of cerium, propionate anions, and Al–O bonds in the inhibitive layer on the 7049 aluminum alloy surface was confirmed by X-ray photoelectron spectroscopy analysis. This indicates the formation of Ce propionate complexes and bonds via oxygen atoms from carboxylate anions with the metal surface. Density-functional theory methods were used for the geometry optimization of possible Ce propionate complexes as corrosion inhibitors.
PB  - Wiley
T2  - Materials and Corrosion
T1  - Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution
DO  - 10.1002/maco.202213177
ER  - 

@article{
author = "Radojković, Bojana and Marunkić, Dunja and Milošević, Milena and Grubišić, Sonja and Pejić, Jovanka and Jegdić, Bore and Marinković, Aleksandar",
year = "2022",
abstract = "Green corrosion inhibitors, Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate, were tested in NaCl solution with the aim to evaluate their inhibitory effect on 7049 aluminum alloy and to propose a mechanism of their inhibitive action. Corrosion properties of the formed inhibitor layer were analyzed using electrochemical impedance spectroscopy, while the pit formation resistance was analyzed using potentiodynamic polarization tests. Morphology of the formed pits was evaluated by scanning electron microscope/energy-dispersive spectroscopy analysis. It was shown that Ce(III) propionate in NaCl solution has a noticeably higher protective ability than Ce(III) chloride and Ce(III) nitrate. The presence of cerium, propionate anions, and Al–O bonds in the inhibitive layer on the 7049 aluminum alloy surface was confirmed by X-ray photoelectron spectroscopy analysis. This indicates the formation of Ce propionate complexes and bonds via oxygen atoms from carboxylate anions with the metal surface. Density-functional theory methods were used for the geometry optimization of possible Ce propionate complexes as corrosion inhibitors.",
publisher = "Wiley",
journal = "Materials and Corrosion",
title = "Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution",
doi = "10.1002/maco.202213177"
}

Radojković, B., Marunkić, D., Milošević, M., Grubišić, S., Pejić, J., Jegdić, B.,& Marinković, A.. (2022). Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution. in Materials and Corrosion
Wiley..
https://doi.org/10.1002/maco.202213177

Radojković B, Marunkić D, Milošević M, Grubišić S, Pejić J, Jegdić B, Marinković A. Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution. in Materials and Corrosion. 2022;.
doi:10.1002/maco.202213177 .

Radojković, Bojana, Marunkić, Dunja, Milošević, Milena, Grubišić, Sonja, Pejić, Jovanka, Jegdić, Bore, Marinković, Aleksandar, "Analysis of the Ce(III) chloride, Ce(III) nitrate, and Ce(III) propionate as corrosion inhibitor of the aluminum alloys in NaCl solution" in Materials and Corrosion (2022),
https://doi.org/10.1002/maco.202213177 . .

TY  - JOUR
AU  - Marunkić, Dunja
AU  - Jegdić, Bore
AU  - Pejić, Jovanka
AU  - Milošević, Milena
AU  - Marinković, Aleksandar
AU  - Radojković, Bojana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5249
AB  - The new environmentally friendly corrosion inhibitor Ce-citrate was analyzed in 0.05 M NaCl solution on the AISI 4130 steel. For comparison, corrosion inhibitor Ce-chloride is tested in the same concentration as Ce-citrate (0.3 mM). Inhibitor efficiencies were determined by applying electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The results of electrochemical measurements, the contact angle measurements, as well as the surface appearance of the specimens after the immersion in the inhibitive NaCl solution for 96 h confirmed that the new environmentally friendly inhibitor (Ce-citrate) has a significantly higher protective ability than the Ce-chloride. The protective ability of Ce-citrate increases over time, according to the proposed mechanism of its action. In the inhibitive layer formed in NaCl solution containing Ce-citrate, XPS analysis revealed the presence of cerium in oxidation states CeIII and CeIV, citrate anions (carboxyl O–C═O group as well as C–OH and C–C and C–H bonds), oxide, hydroxide, and oxyhydroxide of iron (mainly FeOOH and Fe2O3). The mechanism of inhibitory action of Ce-citrate was proposed and analyzed in detail.
PB  - Wiley
T2  - Materials and Corrosion
T1  - Analysis of inhibitory properties of Ce-citrate as a green corrosion inhibitor of low alloy steel in neutral chloride solution
VL  - 73
SP  - 1286
EP  - 1297
DO  - 10.1002/maco.202213079
ER  - 

@article{
author = "Marunkić, Dunja and Jegdić, Bore and Pejić, Jovanka and Milošević, Milena and Marinković, Aleksandar and Radojković, Bojana",
year = "2022",
abstract = "The new environmentally friendly corrosion inhibitor Ce-citrate was analyzed in 0.05 M NaCl solution on the AISI 4130 steel. For comparison, corrosion inhibitor Ce-chloride is tested in the same concentration as Ce-citrate (0.3 mM). Inhibitor efficiencies were determined by applying electrochemical impedance spectroscopy and potentiodynamic polarization measurements. The results of electrochemical measurements, the contact angle measurements, as well as the surface appearance of the specimens after the immersion in the inhibitive NaCl solution for 96 h confirmed that the new environmentally friendly inhibitor (Ce-citrate) has a significantly higher protective ability than the Ce-chloride. The protective ability of Ce-citrate increases over time, according to the proposed mechanism of its action. In the inhibitive layer formed in NaCl solution containing Ce-citrate, XPS analysis revealed the presence of cerium in oxidation states CeIII and CeIV, citrate anions (carboxyl O–C═O group as well as C–OH and C–C and C–H bonds), oxide, hydroxide, and oxyhydroxide of iron (mainly FeOOH and Fe2O3). The mechanism of inhibitory action of Ce-citrate was proposed and analyzed in detail.",
publisher = "Wiley",
journal = "Materials and Corrosion",
title = "Analysis of inhibitory properties of Ce-citrate as a green corrosion inhibitor of low alloy steel in neutral chloride solution",
volume = "73",
pages = "1286-1297",
doi = "10.1002/maco.202213079"
}

Marunkić, D., Jegdić, B., Pejić, J., Milošević, M., Marinković, A.,& Radojković, B.. (2022). Analysis of inhibitory properties of Ce-citrate as a green corrosion inhibitor of low alloy steel in neutral chloride solution. in Materials and Corrosion
Wiley., 73, 1286-1297.
https://doi.org/10.1002/maco.202213079

Marunkić D, Jegdić B, Pejić J, Milošević M, Marinković A, Radojković B. Analysis of inhibitory properties of Ce-citrate as a green corrosion inhibitor of low alloy steel in neutral chloride solution. in Materials and Corrosion. 2022;73:1286-1297.
doi:10.1002/maco.202213079 .

Marunkić, Dunja, Jegdić, Bore, Pejić, Jovanka, Milošević, Milena, Marinković, Aleksandar, Radojković, Bojana, "Analysis of inhibitory properties of Ce-citrate as a green corrosion inhibitor of low alloy steel in neutral chloride solution" in Materials and Corrosion, 73 (2022):1286-1297,
https://doi.org/10.1002/maco.202213079 . .

TY  - JOUR
AU  - Marunkić, Dunja
AU  - Pejić, Jovanka
AU  - Jegdić, Bore
AU  - Marinković, Aleksandar
AU  - Radojković, Bojana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5251
AB  - The corrosion behaviour of high-strength AA7075 aluminium alloy in NaCl solution, without and in the presence of environmentally friendly corrosion inhibitors (Ce-chloride and Ce-citrate) in low concentrations (  lt 0.5 mM), was analysed. The degree of precipitation of the solid solution of AA7075 alloy was determined by measuring the electrical conductivity, while the surface morphology and appearance of intermetallic compounds before and after corrosion testing were analysed by SEM/EDS method. The general corrosion resistance of the tested alloy in NaCl solution and the degree of the inhibitory effect of the corrosion inhibitors were determined on the basis of electrochemical impedance spectroscopy and polarization measurements, while resistance to pit formation on the bases of E-pit. AA7075 alloy showed high resistance to general corrosion in the presence of both tested inhibitors, while resistance to pit formation was significantly higher in the presence of Ce-citrate (concentration 0.5 mM). Also, Ce-citrate present in NaCl solution at lower concentrations provides satisfactory resistance of AA7075 alloy to general and pitting corrosion. A mechanism of protective action of Ce-citrate inhibitor has been proposed.
PB  - Wiley
T2  - Materials and Corrosion-Werkstoffe Und Korrosion
T1  - Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy
VL  - 73
SP  - 950
EP  - 960
DO  - 10.1002/maco.202112900
ER  - 

@article{
author = "Marunkić, Dunja and Pejić, Jovanka and Jegdić, Bore and Marinković, Aleksandar and Radojković, Bojana",
year = "2022",
abstract = "The corrosion behaviour of high-strength AA7075 aluminium alloy in NaCl solution, without and in the presence of environmentally friendly corrosion inhibitors (Ce-chloride and Ce-citrate) in low concentrations (  lt 0.5 mM), was analysed. The degree of precipitation of the solid solution of AA7075 alloy was determined by measuring the electrical conductivity, while the surface morphology and appearance of intermetallic compounds before and after corrosion testing were analysed by SEM/EDS method. The general corrosion resistance of the tested alloy in NaCl solution and the degree of the inhibitory effect of the corrosion inhibitors were determined on the basis of electrochemical impedance spectroscopy and polarization measurements, while resistance to pit formation on the bases of E-pit. AA7075 alloy showed high resistance to general corrosion in the presence of both tested inhibitors, while resistance to pit formation was significantly higher in the presence of Ce-citrate (concentration 0.5 mM). Also, Ce-citrate present in NaCl solution at lower concentrations provides satisfactory resistance of AA7075 alloy to general and pitting corrosion. A mechanism of protective action of Ce-citrate inhibitor has been proposed.",
publisher = "Wiley",
journal = "Materials and Corrosion-Werkstoffe Und Korrosion",
title = "Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy",
volume = "73",
pages = "950-960",
doi = "10.1002/maco.202112900"
}

Marunkić, D., Pejić, J., Jegdić, B., Marinković, A.,& Radojković, B.. (2022). Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy. in Materials and Corrosion-Werkstoffe Und Korrosion
Wiley., 73, 950-960.
https://doi.org/10.1002/maco.202112900

Marunkić D, Pejić J, Jegdić B, Marinković A, Radojković B. Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy. in Materials and Corrosion-Werkstoffe Und Korrosion. 2022;73:950-960.
doi:10.1002/maco.202112900 .

Marunkić, Dunja, Pejić, Jovanka, Jegdić, Bore, Marinković, Aleksandar, Radojković, Bojana, "Cerium citrate as ecologically friendly corrosion inhibitor for AA7075 alloy" in Materials and Corrosion-Werkstoffe Und Korrosion, 73 (2022):950-960,
https://doi.org/10.1002/maco.202112900 . .

TY  - JOUR
AU  - Pejić, Jovanka N.
AU  - Jegdić, Bore
AU  - Radojković, Bojana
AU  - Marunkić, Dunja
AU  - Marinković, Aleksandar D.
AU  - Bajat, Jelena
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5418
AB  - In this work new green corrosion inhibitors based on the synthesized cerium-cysteine complex on AA7049 aluminum alloy were analyzed and compared to the mixture of CeCl3 and cysteine in 0.1 M NaCl. The complex structures were confirmed by FTIR, NMR and Elemental Analysis. It was shown that cerium was present in two oxidation states, CeIII and CeIV, when the mixture was analyzed, while there was only a CeIV oxidation state in the cerium-cysteine complex. The mechanisms of inhibitory action of the joint effect of CeCl3 and cysteine vs. their complex were proposed and analyzed in more detail.
PB  - Elsevier
T2  - Corrosion Science
T1  - Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture  vs. complexation
VL  - 209
SP  - 110815
DO  - 10.1016/j.corsci.2022.110815
ER  - 

@article{
author = "Pejić, Jovanka N. and Jegdić, Bore and Radojković, Bojana and Marunkić, Dunja and Marinković, Aleksandar D. and Bajat, Jelena",
year = "2022",
abstract = "In this work new green corrosion inhibitors based on the synthesized cerium-cysteine complex on AA7049 aluminum alloy were analyzed and compared to the mixture of CeCl3 and cysteine in 0.1 M NaCl. The complex structures were confirmed by FTIR, NMR and Elemental Analysis. It was shown that cerium was present in two oxidation states, CeIII and CeIV, when the mixture was analyzed, while there was only a CeIV oxidation state in the cerium-cysteine complex. The mechanisms of inhibitory action of the joint effect of CeCl3 and cysteine vs. their complex were proposed and analyzed in more detail.",
publisher = "Elsevier",
journal = "Corrosion Science",
title = "Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture  vs. complexation",
volume = "209",
pages = "110815",
doi = "10.1016/j.corsci.2022.110815"
}

Pejić, J. N., Jegdić, B., Radojković, B., Marunkić, D., Marinković, A. D.,& Bajat, J.. (2022). Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture  vs. complexation. in Corrosion Science
Elsevier., 209, 110815.
https://doi.org/10.1016/j.corsci.2022.110815

Pejić JN, Jegdić B, Radojković B, Marunkić D, Marinković AD, Bajat J. Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture  vs. complexation. in Corrosion Science. 2022;209:110815.
doi:10.1016/j.corsci.2022.110815 .

Pejić, Jovanka N., Jegdić, Bore, Radojković, Bojana, Marunkić, Dunja, Marinković, Aleksandar D., Bajat, Jelena, "Cysteine and cerium as green corrosion inhibitors for AA7049: Mixture  vs. complexation" in Corrosion Science, 209 (2022):110815,
https://doi.org/10.1016/j.corsci.2022.110815 . .

TY  - CONF
AU  - Kovačina, Jovanka
AU  - Marunkić, Dunja D.
AU  - Simović, Anđela R.
AU  - Radojković, Bojana M.
AU  - Jegdić, Bore
AU  - Pavlović, Miroslav M.
AU  - Marinković, Aleksandar D.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7065
AB  - In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are widely used material in construction, different industries, airspace and military. Commercial 7000 series aluminum alloys have zinc as the main alloying element, followed by magnesium. This 7000 aluminum series offers a very high strength when heat-treated, which comes from its composition. The life time of these alloys is reduced due to corrosion damage. It is known that corrosion directly or indirectly affects materials, human health and safety, and it causes global economic and environmental problem. The use of inhibitors in corrosion protection is the simplest, most economical and most efficient approach that is routinely used to ‘reduce’ this problem in industry. The most widely used inorganic inhibitors, such as chromates, are not safe, causing health and safety problems due to their toxicity. Organic compounds have increased interest of the scientific community as potential inhibitors in exchange for the most commonly used. The aim of this study was to investigate new green, eco-friendly inhibitors from the group of amino acid and their combination with lanthanides. For the purposes of this investigation, cerium-cysteine complex was synthesized and analyzed by Fourier-Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM / EDS), Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Linear Sweep Voltammetry (LSV) analyses. SEM/EDS was used for morphological analysis and to determine the composition of the aluminum alloy on which the electrochemical tests have been performed. Electrochemical measurements (PEIS, LSV) were erformed in order to test the inhibitory efficacy in 0.1M NaCl at room temperature. Different concentrations of cysteine and Ce-cysteine complex were examined to optimize the process. The adsorption of the inhibitor follows the Langmuir isotherm, and based on the electrochemical results and calculated thermodynamic potential (Gibbs free energy) it can be concluded that both cysteine and cerium-cysteine complex are mixed type of inhibitors. It can be concluded that both cysteine and Ce-cysteine complex inhibitors satisfactory inhibition effect on aluminum alloy corrosion.
T1  - Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion"
UR  - https://hdl.handle.net/21.15107/rcub_cer_5448
ER  - 

@conference{
author = "Kovačina, Jovanka and Marunkić, Dunja D. and Simović, Anđela R. and Radojković, Bojana M. and Jegdić, Bore and Pavlović, Miroslav M. and Marinković, Aleksandar D.",
year = "2021",
abstract = "In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are widely used material in construction, different industries, airspace and military. Commercial 7000 series aluminum alloys have zinc as the main alloying element, followed by magnesium. This 7000 aluminum series offers a very high strength when heat-treated, which comes from its composition. The life time of these alloys is reduced due to corrosion damage. It is known that corrosion directly or indirectly affects materials, human health and safety, and it causes global economic and environmental problem. The use of inhibitors in corrosion protection is the simplest, most economical and most efficient approach that is routinely used to ‘reduce’ this problem in industry. The most widely used inorganic inhibitors, such as chromates, are not safe, causing health and safety problems due to their toxicity. Organic compounds have increased interest of the scientific community as potential inhibitors in exchange for the most commonly used. The aim of this study was to investigate new green, eco-friendly inhibitors from the group of amino acid and their combination with lanthanides. For the purposes of this investigation, cerium-cysteine complex was synthesized and analyzed by Fourier-Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM / EDS), Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Linear Sweep Voltammetry (LSV) analyses. SEM/EDS was used for morphological analysis and to determine the composition of the aluminum alloy on which the electrochemical tests have been performed. Electrochemical measurements (PEIS, LSV) were erformed in order to test the inhibitory efficacy in 0.1M NaCl at room temperature. Different concentrations of cysteine and Ce-cysteine complex were examined to optimize the process. The adsorption of the inhibitor follows the Langmuir isotherm, and based on the electrochemical results and calculated thermodynamic potential (Gibbs free energy) it can be concluded that both cysteine and cerium-cysteine complex are mixed type of inhibitors. It can be concluded that both cysteine and Ce-cysteine complex inhibitors satisfactory inhibition effect on aluminum alloy corrosion.",
title = "Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion"",
url = "https://hdl.handle.net/21.15107/rcub_cer_5448"
}

Kovačina, J., Marunkić, D. D., Simović, A. R., Radojković, B. M., Jegdić, B., Pavlović, M. M.,& Marinković, A. D.. (2021). Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion". .
https://hdl.handle.net/21.15107/rcub_cer_5448

Kovačina J, Marunkić DD, Simović AR, Radojković BM, Jegdić B, Pavlović MM, Marinković AD. Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion". 2021;.
https://hdl.handle.net/21.15107/rcub_cer_5448 .

Kovačina, Jovanka, Marunkić, Dunja D., Simović, Anđela R., Radojković, Bojana M., Jegdić, Bore, Pavlović, Miroslav M., Marinković, Aleksandar D., "Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion"" (2021),
https://hdl.handle.net/21.15107/rcub_cer_5448 .

TY  - CONF
AU  - Kovačina, Jovanka
AU  - Marunkić, Dunja D.
AU  - Simović, Anđela R.
AU  - Radojković, Bojana M.
AU  - Jegdić, Bore
AU  - Pavlović, Miroslav M.
AU  - Marinković, Aleksandar D.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5448
AB  - In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are widely used material in construction, different industries, airspace and military. Commercial 7000 series aluminum alloys have zinc as the main alloying element, followed by magnesium. This 7000 aluminum series offers a very high strength when heat-treated, which comes from its composition. The life time of these alloys is reduced due to corrosion damage. It is known that corrosion directly or indirectly affects materials, human health and safety, and it causes global economic and environmental problem. The use of inhibitors in corrosion protection is the simplest, most economical and most efficient approach that is routinely used to ‘reduce’ this problem in industry. The most widely used inorganic inhibitors, such as chromates, are not safe, causing health and safety problems due to their toxicity. Organic compounds have increased interest of the scientific community as potential inhibitors in exchange for the most commonly used. The aim of this study was to investigate new green, eco-friendly inhibitors from the group of amino acid and their combination with lanthanides. For the purposes of this investigation, cerium-cysteine complex was synthesized and analyzed by Fourier-Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM / EDS), Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Linear Sweep Voltammetry (LSV) analyses. SEM/EDS was used for morphological analysis and to determine the composition of the aluminum alloy on which the electrochemical tests have been performed. Electrochemical measurements (PEIS, LSV) were erformed in order to test the inhibitory efficacy in 0.1M NaCl at room temperature. Different concentrations of cysteine and Ce-cysteine complex were examined to optimize the process. The adsorption of the inhibitor follows the Langmuir isotherm, and based on the electrochemical results and calculated thermodynamic potential (Gibbs free energy) it can be concluded that both cysteine and cerium-cysteine complex are mixed type of inhibitors. It can be concluded that both cysteine and Ce-cysteine complex inhibitors satisfactory inhibition effect on aluminum alloy corrosion.
PB  - Faculty of Technology Zvornik – University of East Sarajevo
C3  - Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021  Jahorina, Republic of Serbia,  Bosnia and Herzegovina
T1  - Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion
VL  - 7
SP  - 222
EP  - 222
UR  - https://hdl.handle.net/21.15107/rcub_cer_5448
ER  - 

@conference{
author = "Kovačina, Jovanka and Marunkić, Dunja D. and Simović, Anđela R. and Radojković, Bojana M. and Jegdić, Bore and Pavlović, Miroslav M. and Marinković, Aleksandar D.",
year = "2021",
abstract = "In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are widely used material in construction, different industries, airspace and military. Commercial 7000 series aluminum alloys have zinc as the main alloying element, followed by magnesium. This 7000 aluminum series offers a very high strength when heat-treated, which comes from its composition. The life time of these alloys is reduced due to corrosion damage. It is known that corrosion directly or indirectly affects materials, human health and safety, and it causes global economic and environmental problem. The use of inhibitors in corrosion protection is the simplest, most economical and most efficient approach that is routinely used to ‘reduce’ this problem in industry. The most widely used inorganic inhibitors, such as chromates, are not safe, causing health and safety problems due to their toxicity. Organic compounds have increased interest of the scientific community as potential inhibitors in exchange for the most commonly used. The aim of this study was to investigate new green, eco-friendly inhibitors from the group of amino acid and their combination with lanthanides. For the purposes of this investigation, cerium-cysteine complex was synthesized and analyzed by Fourier-Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM / EDS), Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Linear Sweep Voltammetry (LSV) analyses. SEM/EDS was used for morphological analysis and to determine the composition of the aluminum alloy on which the electrochemical tests have been performed. Electrochemical measurements (PEIS, LSV) were erformed in order to test the inhibitory efficacy in 0.1M NaCl at room temperature. Different concentrations of cysteine and Ce-cysteine complex were examined to optimize the process. The adsorption of the inhibitor follows the Langmuir isotherm, and based on the electrochemical results and calculated thermodynamic potential (Gibbs free energy) it can be concluded that both cysteine and cerium-cysteine complex are mixed type of inhibitors. It can be concluded that both cysteine and Ce-cysteine complex inhibitors satisfactory inhibition effect on aluminum alloy corrosion.",
publisher = "Faculty of Technology Zvornik – University of East Sarajevo",
journal = "Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021  Jahorina, Republic of Serbia,  Bosnia and Herzegovina",
title = "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion",
volume = "7",
pages = "222-222",
url = "https://hdl.handle.net/21.15107/rcub_cer_5448"
}

Kovačina, J., Marunkić, D. D., Simović, A. R., Radojković, B. M., Jegdić, B., Pavlović, M. M.,& Marinković, A. D.. (2021). Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion. in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021  Jahorina, Republic of Serbia,  Bosnia and Herzegovina
Faculty of Technology Zvornik – University of East Sarajevo., 7, 222-222.
https://hdl.handle.net/21.15107/rcub_cer_5448

Kovačina J, Marunkić DD, Simović AR, Radojković BM, Jegdić B, Pavlović MM, Marinković AD. Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion. in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021  Jahorina, Republic of Serbia,  Bosnia and Herzegovina. 2021;7:222-222.
https://hdl.handle.net/21.15107/rcub_cer_5448 .

Kovačina, Jovanka, Marunkić, Dunja D., Simović, Anđela R., Radojković, Bojana M., Jegdić, Bore, Pavlović, Miroslav M., Marinković, Aleksandar D., "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion" in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021  Jahorina, Republic of Serbia,  Bosnia and Herzegovina, 7 (2021):222-222,
https://hdl.handle.net/21.15107/rcub_cer_5448 .

TY  - JOUR
AU  - Knežević, Dragan
AU  - Radojković, Bojana
AU  - Ristić, Slavica
AU  - Polić, Suzana R.
AU  - Janićijević, Milovan
AU  - Tomić, Ljubiša
AU  - Jegdić, Bore
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3978
AB  - Temperature  distribution  induced  by  laser  radiation  is  a  very  important 
parameter for an efficient and safe application of lasers in different ceramic 
processing  techniques.  This  paper  presents  the  results  of  an  infrared 
thermography (IRT) application for monitoring temperature distribution on 
a ceramic surface during Nd: YAG laser irradiation with different fluences 
and 8ns pulse duration. FLIR, E40 and SC7200 IR cameras were used with 
the  aim  of  recording  the  maximum  temperature  in  the  irradiated  zones.  It 
was  expected  that  IRT  could  give  some  information  related  to  the  heat 
affected zone and possible damage to the base material; however, the results 
have  shown  that  IR  cameras,  even  those  with  high  performance  such  as 
SC7200,  cannot  record  the  maximum  temperature  value  at  the  moment  of 
laser  operation,  but  only  the  average  temperature  of  the  bulk  sample 
material  after  laser  pulses.  The  results  of  the  numerical  simulation  have 
confirmed the value of the thermographic measurements. The microstructure 
and  micromorphology  of  the  ceramic  surface  before  and  after  the  laser 
treatment  were  analysed  by  optical  and  scanning  electron  microscopy  as 
well  as  by  examining  the  roughness  of  the  irradiated  and  non-  irradiated 
surfaces,  while  the  micromechanical  changes  were  analysed  by  comparing 
the micro-hardness of the irradiated and non-exposed surfaces.
PB  - Vinča Institute of Nuclear Sciences, Belgrade
T2  - Thermal Science
T1  - Monitoring of a ceramic surface temperature field induced by pulsed Nd: YAG laser
VL  - 25
IS  - 1B
SP  - 567
EP  - 578
DO  - 10.2298/TSCI190811425K
ER  - 

@article{
author = "Knežević, Dragan and Radojković, Bojana and Ristić, Slavica and Polić, Suzana R. and Janićijević, Milovan and Tomić, Ljubiša and Jegdić, Bore",
year = "2021",
abstract = "Temperature  distribution  induced  by  laser  radiation  is  a  very  important 
parameter for an efficient and safe application of lasers in different ceramic 
processing  techniques.  This  paper  presents  the  results  of  an  infrared 
thermography (IRT) application for monitoring temperature distribution on 
a ceramic surface during Nd: YAG laser irradiation with different fluences 
and 8ns pulse duration. FLIR, E40 and SC7200 IR cameras were used with 
the  aim  of  recording  the  maximum  temperature  in  the  irradiated  zones.  It 
was  expected  that  IRT  could  give  some  information  related  to  the  heat 
affected zone and possible damage to the base material; however, the results 
have  shown  that  IR  cameras,  even  those  with  high  performance  such  as 
SC7200,  cannot  record  the  maximum  temperature  value  at  the  moment  of 
laser  operation,  but  only  the  average  temperature  of  the  bulk  sample 
material  after  laser  pulses.  The  results  of  the  numerical  simulation  have 
confirmed the value of the thermographic measurements. The microstructure 
and  micromorphology  of  the  ceramic  surface  before  and  after  the  laser 
treatment  were  analysed  by  optical  and  scanning  electron  microscopy  as 
well  as  by  examining  the  roughness  of  the  irradiated  and  non-  irradiated 
surfaces,  while  the  micromechanical  changes  were  analysed  by  comparing 
the micro-hardness of the irradiated and non-exposed surfaces.",
publisher = "Vinča Institute of Nuclear Sciences, Belgrade",
journal = "Thermal Science",
title = "Monitoring of a ceramic surface temperature field induced by pulsed Nd: YAG laser",
volume = "25",
number = "1B",
pages = "567-578",
doi = "10.2298/TSCI190811425K"
}

Knežević, D., Radojković, B., Ristić, S., Polić, S. R., Janićijević, M., Tomić, L.,& Jegdić, B.. (2021). Monitoring of a ceramic surface temperature field induced by pulsed Nd: YAG laser. in Thermal Science
Vinča Institute of Nuclear Sciences, Belgrade., 25(1B), 567-578.
https://doi.org/10.2298/TSCI190811425K

Knežević D, Radojković B, Ristić S, Polić SR, Janićijević M, Tomić L, Jegdić B. Monitoring of a ceramic surface temperature field induced by pulsed Nd: YAG laser. in Thermal Science. 2021;25(1B):567-578.
doi:10.2298/TSCI190811425K .

Knežević, Dragan, Radojković, Bojana, Ristić, Slavica, Polić, Suzana R., Janićijević, Milovan, Tomić, Ljubiša, Jegdić, Bore, "Monitoring of a ceramic surface temperature field induced by pulsed Nd: YAG laser" in Thermal Science, 25, no. 1B (2021):567-578,
https://doi.org/10.2298/TSCI190811425K . .

TY  - JOUR
AU  - Marunkić, Dunja
AU  - Pejić, Jovanka
AU  - Jegdić, Bore
AU  - Linić, Suzana
AU  - Perišić, Jasmina
AU  - Radojković, Bojana
AU  - Marinković, Aleksandar D.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4787
AB  - The corrosion behavior of AA7049 aluminum alloy in NaCl solution in the presence of environmentally-friendly corrosion inhibitors (Ce-chloride, Ce-formate, Ce-acetate, and Ce-propionate) was analyzed. The chemical composition of intermetallic particles was evaluated by a Scanning Electron Microscope, equipped for Energy Dispersive Spectroscopy measurements, while the presence of cerium and type of functional groups in inhibitors surface layers were analyzed by X-ray Photoelectron Spectroscopy and Fourier-Transform Infrared Spectroscopy, respectively. Inhibitor efficiencies were tested by applying electrochemical techniques such as Electrochemical Impedance Spectroscopy and Linear Sweep Voltammetry. Ce-propionate showed a greater inhibitory effect than all other tested corrosion inhibitors. The inhibitory effect decreases in the following order: Ce-propionate > Ce-acetate > Ce-formate > Ce-chloride. Propionate anions have a higher water contact angle and also a longer aliphatic side chain than acetate and formate anions. The mechanism of inhibitory action of Ce-propionate and other tested corrosion inhibitors has been proposed.
PB  - IOP Publishing
T2  - Journal of Electrochemical Society
T1  - Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution
VL  - 168
IS  - 8
SP  - 081501
DO  - 10.1149/1945-7111/ac1895
ER  - 

@article{
author = "Marunkić, Dunja and Pejić, Jovanka and Jegdić, Bore and Linić, Suzana and Perišić, Jasmina and Radojković, Bojana and Marinković, Aleksandar D.",
year = "2021",
abstract = "The corrosion behavior of AA7049 aluminum alloy in NaCl solution in the presence of environmentally-friendly corrosion inhibitors (Ce-chloride, Ce-formate, Ce-acetate, and Ce-propionate) was analyzed. The chemical composition of intermetallic particles was evaluated by a Scanning Electron Microscope, equipped for Energy Dispersive Spectroscopy measurements, while the presence of cerium and type of functional groups in inhibitors surface layers were analyzed by X-ray Photoelectron Spectroscopy and Fourier-Transform Infrared Spectroscopy, respectively. Inhibitor efficiencies were tested by applying electrochemical techniques such as Electrochemical Impedance Spectroscopy and Linear Sweep Voltammetry. Ce-propionate showed a greater inhibitory effect than all other tested corrosion inhibitors. The inhibitory effect decreases in the following order: Ce-propionate > Ce-acetate > Ce-formate > Ce-chloride. Propionate anions have a higher water contact angle and also a longer aliphatic side chain than acetate and formate anions. The mechanism of inhibitory action of Ce-propionate and other tested corrosion inhibitors has been proposed.",
publisher = "IOP Publishing",
journal = "Journal of Electrochemical Society",
title = "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution",
volume = "168",
number = "8",
pages = "081501",
doi = "10.1149/1945-7111/ac1895"
}

Marunkić, D., Pejić, J., Jegdić, B., Linić, S., Perišić, J., Radojković, B.,& Marinković, A. D.. (2021). Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of Electrochemical Society
IOP Publishing., 168(8), 081501.
https://doi.org/10.1149/1945-7111/ac1895

Marunkić D, Pejić J, Jegdić B, Linić S, Perišić J, Radojković B, Marinković AD. Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution. in Journal of Electrochemical Society. 2021;168(8):081501.
doi:10.1149/1945-7111/ac1895 .

Marunkić, Dunja, Pejić, Jovanka, Jegdić, Bore, Linić, Suzana, Perišić, Jasmina, Radojković, Bojana, Marinković, Aleksandar D., "Inhibitory Effect of Cerium Salts of Lower Carboxylic Acids on Al-Zn-Mg-Cu Alloy in NaCl Solution" in Journal of Electrochemical Society, 168, no. 8 (2021):081501,
https://doi.org/10.1149/1945-7111/ac1895 . .

TY  - CONF
AU  - Kovačina, Jovanka
AU  - Jegdić, Bore
AU  - Marunkić, Dunja
AU  - Simović, Anđela
AU  - Lazić, Dragana
AU  - Marinković, Aleksandar
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7066
AB  - Corrosion, although a natural process, presents a costly problem with the possibly dangerous
outcome. Mild steel, which is an alloy used in many industrial applications, manifests poor
corrosion resistance when in contact with corrosive environments and even more so in presence
of chloride ions. This is a particularly important problem in a variety of industrial applications
related to oil and gas processing such as pipeline cleaning pipeline/acid descaling, and oil well
acidizing, where the use of mineral acids (commonly hydrochloric acid) is necessary for
achieving satisfying productivity levels. The most practical method to combat the corrosion issue
is the use of corrosion inhibitors. Organic inhibitors with functional groups such as –OH, –
COOH, NH2, etc, when added in small concentrations to a corrosive solution, can lower the
corrosion rate very efficiently, especially in acidic media. Being that they are also inexpensive,
these organic inhibitors are successfully used for corrosion prevention. A great variety of
organic inhibitors has opened a door to environmentally friendly corrosion inhibition. One of
the environmentally friendly organic compounds are amino acids. They are non-toxic
biomolecules completely soluble in aqueous media and are produced with high purity and at low
cost which makes them a great candidate for a safe corrosion inhibitor. The application of amino
acids and their derivatives against corrosion of iron and its alloys has been investigated so far.
Amino acid based corrosion inhibitor was synthesized by condensing formaldehyde, glyoxal, and
β-alanine, and characterized using FTIR and NMR spectroscopic methods. Imidazolium
zwitterion has been investigated as a corrosion inhibitor on mild steel in 1 M HCl solution using
electrochemical methods: electrochemical impedance (EIS) and linear polarization resistance
(LPR). Different concentrations of inhibitor were used to find the best efficiency. This compound
gave a maximum inhibition efficiency of 74.3 % at 10.7 ppm. The adsorption of inhibitor on mild
steel surface followed the Langmuir adsorption isotherm. Furthermore, electrochemical
measurement results demonstrated that inhibitors act as mixed-type inhibitors (anodic and
cathodic).
PB  - Faculty of Technology Zvornik – University of East Sarajevo
C3  - Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina
T1  - Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel
VL  - 7
SP  - 212
EP  - 212
UR  - https://hdl.handle.net/21.15107/rcub_cer_7066
ER  - 

@conference{
author = "Kovačina, Jovanka and Jegdić, Bore and Marunkić, Dunja and Simović, Anđela and Lazić, Dragana and Marinković, Aleksandar",
year = "2021",
abstract = "Corrosion, although a natural process, presents a costly problem with the possibly dangerous
outcome. Mild steel, which is an alloy used in many industrial applications, manifests poor
corrosion resistance when in contact with corrosive environments and even more so in presence
of chloride ions. This is a particularly important problem in a variety of industrial applications
related to oil and gas processing such as pipeline cleaning pipeline/acid descaling, and oil well
acidizing, where the use of mineral acids (commonly hydrochloric acid) is necessary for
achieving satisfying productivity levels. The most practical method to combat the corrosion issue
is the use of corrosion inhibitors. Organic inhibitors with functional groups such as –OH, –
COOH, NH2, etc, when added in small concentrations to a corrosive solution, can lower the
corrosion rate very efficiently, especially in acidic media. Being that they are also inexpensive,
these organic inhibitors are successfully used for corrosion prevention. A great variety of
organic inhibitors has opened a door to environmentally friendly corrosion inhibition. One of
the environmentally friendly organic compounds are amino acids. They are non-toxic
biomolecules completely soluble in aqueous media and are produced with high purity and at low
cost which makes them a great candidate for a safe corrosion inhibitor. The application of amino
acids and their derivatives against corrosion of iron and its alloys has been investigated so far.
Amino acid based corrosion inhibitor was synthesized by condensing formaldehyde, glyoxal, and
β-alanine, and characterized using FTIR and NMR spectroscopic methods. Imidazolium
zwitterion has been investigated as a corrosion inhibitor on mild steel in 1 M HCl solution using
electrochemical methods: electrochemical impedance (EIS) and linear polarization resistance
(LPR). Different concentrations of inhibitor were used to find the best efficiency. This compound
gave a maximum inhibition efficiency of 74.3 % at 10.7 ppm. The adsorption of inhibitor on mild
steel surface followed the Langmuir adsorption isotherm. Furthermore, electrochemical
measurement results demonstrated that inhibitors act as mixed-type inhibitors (anodic and
cathodic).",
publisher = "Faculty of Technology Zvornik – University of East Sarajevo",
journal = "Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina",
title = "Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel",
volume = "7",
pages = "212-212",
url = "https://hdl.handle.net/21.15107/rcub_cer_7066"
}

Kovačina, J., Jegdić, B., Marunkić, D., Simović, A., Lazić, D.,& Marinković, A.. (2021). Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel. in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina
Faculty of Technology Zvornik – University of East Sarajevo., 7, 212-212.
https://hdl.handle.net/21.15107/rcub_cer_7066

Kovačina J, Jegdić B, Marunkić D, Simović A, Lazić D, Marinković A. Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel. in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina. 2021;7:212-212.
https://hdl.handle.net/21.15107/rcub_cer_7066 .

Kovačina, Jovanka, Jegdić, Bore, Marunkić, Dunja, Simović, Anđela, Lazić, Dragana, Marinković, Aleksandar, "Amino acid imidayolium zwitterion as green corrosion inhibitor for mild steel" in Book of abstracts - VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina, 7 (2021):212-212,
https://hdl.handle.net/21.15107/rcub_cer_7066 .

TY  - JOUR
AU  - Radojković, Bojana
AU  - Jegdić, Bore
AU  - Kovačina, Jovanka
AU  - Stevanović, Sanja
AU  - Marunkić, Dunja
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4706
AB  - The influence of the microstructure of X5CrNi18-10 stainless steel welded joint on its resistance to general, pitting, and intergranular corrosion was analyzed. The structure of weld metal, heat affected zone (HAZ) and base metal before and after electrochemical testing was analyzed using SEM/EDS. The influence of the roughness level of the welded joint on its resistance to the mentioned types of corrosion was also examined. Although the degree of sensitization of HAZ was significantly lower than the limit value, HAZ showed a noticeably greater tendency to general and pitting corrosion than weld metal and base metal. Polishing has been shown to improve significantly the corrosion resistance of HAZ than in other parts of a welded joint.
AB  - Анализиран је утицај микроструктуре завареног споја нерђајућег челика X5CrNi18- -10 на његову отпорност према општој, питинг и интеркристалној корозији. Структура метала шава, зоне утицаја топлоте (HAZ) и основног метала, пре и после електрохемиј- ских испитивања, анализирана је применом SEM/EDS. Такође испитан је утицај нивоа храпавости завареног споја на његову отпорност према наведеним видовима корозије. Иако је степен сензибилизације HAZ био знатно нижи од граничне вредности, ЗУТ је по- казао значајно већу склоност према општој и питинг корозији него метал шава и основ- ни метал. Показано је да полирање знатно побољшава отпорност ЗУТ према корозији него што је то случај са осталим деловима завареног споја.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Microstructure, roughness, and corrosion resistance of X5CrNi18-10 austenite stainless steel welded joint
T1  - X Mikrostruktura , hrapavost i otpornost na koroziju zavarenog spoja austenitnog nerđajućeg čelika X5CrNi18-10
VL  - 86
IS  - 4
SP  - 407
EP  - 413
DO  - 10.2298/JSC201203007R
ER  - 

@article{
author = "Radojković, Bojana and Jegdić, Bore and Kovačina, Jovanka and Stevanović, Sanja and Marunkić, Dunja",
year = "2021",
abstract = "The influence of the microstructure of X5CrNi18-10 stainless steel welded joint on its resistance to general, pitting, and intergranular corrosion was analyzed. The structure of weld metal, heat affected zone (HAZ) and base metal before and after electrochemical testing was analyzed using SEM/EDS. The influence of the roughness level of the welded joint on its resistance to the mentioned types of corrosion was also examined. Although the degree of sensitization of HAZ was significantly lower than the limit value, HAZ showed a noticeably greater tendency to general and pitting corrosion than weld metal and base metal. Polishing has been shown to improve significantly the corrosion resistance of HAZ than in other parts of a welded joint., Анализиран је утицај микроструктуре завареног споја нерђајућег челика X5CrNi18- -10 на његову отпорност према општој, питинг и интеркристалној корозији. Структура метала шава, зоне утицаја топлоте (HAZ) и основног метала, пре и после електрохемиј- ских испитивања, анализирана је применом SEM/EDS. Такође испитан је утицај нивоа храпавости завареног споја на његову отпорност према наведеним видовима корозије. Иако је степен сензибилизације HAZ био знатно нижи од граничне вредности, ЗУТ је по- казао значајно већу склоност према општој и питинг корозији него метал шава и основ- ни метал. Показано је да полирање знатно побољшава отпорност ЗУТ према корозији него што је то случај са осталим деловима завареног споја.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Microstructure, roughness, and corrosion resistance of X5CrNi18-10 austenite stainless steel welded joint, X Mikrostruktura , hrapavost i otpornost na koroziju zavarenog spoja austenitnog nerđajućeg čelika X5CrNi18-10",
volume = "86",
number = "4",
pages = "407-413",
doi = "10.2298/JSC201203007R"
}

Radojković, B., Jegdić, B., Kovačina, J., Stevanović, S.,& Marunkić, D.. (2021). Microstructure, roughness, and corrosion resistance of X5CrNi18-10 austenite stainless steel welded joint. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 86(4), 407-413.
https://doi.org/10.2298/JSC201203007R

Radojković B, Jegdić B, Kovačina J, Stevanović S, Marunkić D. Microstructure, roughness, and corrosion resistance of X5CrNi18-10 austenite stainless steel welded joint. in Journal of the Serbian Chemical Society. 2021;86(4):407-413.
doi:10.2298/JSC201203007R .

Radojković, Bojana, Jegdić, Bore, Kovačina, Jovanka, Stevanović, Sanja, Marunkić, Dunja, "Microstructure, roughness, and corrosion resistance of X5CrNi18-10 austenite stainless steel welded joint" in Journal of the Serbian Chemical Society, 86, no. 4 (2021):407-413,
https://doi.org/10.2298/JSC201203007R . .

TY  - JOUR
AU  - Kovačina, Jovanka
AU  - Jegdić, Bore
AU  - Radojković, Bojana
AU  - Marunkić, Dunja
AU  - Stevanović, Sanja
AU  - Simović, Anđela
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4824
AB  - The influence of microstructure and surface roughness of the X5CrNi18-10 austenitic stainless steel-welded joint on resistance to uniform, pitting, and intergranular corrosion, as well as on the stability of the passive film, was evaluated. The microstructure was revealed by optical microscopy and scanning electron microscopy, whereas surface topography and roughness levels were determined by atomic force microscopy. Corrosion characteristics were obtained by the electrochemical potentiokinetic reactivation method with double loop, electrochemical impedance spectroscopy method, as well as by potentiodynamic measurements. The degree of sensitization of heat-affected zone (HAZ) was significantly lower than the threshold value required for the occurrence of intergranular corrosion. However, HAZ showed a significantly greater tendency to pitting and uniform corrosion compared to weld metal and base metal. No effect of roughness levels (RMS from 3.6 to 54 nm) on the pitting potential value of the welded joint was observed (unlike in HAZ). The polished surface shows significantly higher corrosion resistance than the grinded surface. Generally, polishing improved corrosion resistance, especially in HAZ, which is very important because HAZ is a critical place for the occurrence of pitting and other types of corrosion.
PB  - Wiley
T2  - Materials and Corrosion
T1  - Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint
VL  - 72
IS  - 7
SP  - 1215
EP  - 1231
DO  - 10.1002/maco.202012241
ER  - 

@article{
author = "Kovačina, Jovanka and Jegdić, Bore and Radojković, Bojana and Marunkić, Dunja and Stevanović, Sanja and Simović, Anđela",
year = "2021",
abstract = "The influence of microstructure and surface roughness of the X5CrNi18-10 austenitic stainless steel-welded joint on resistance to uniform, pitting, and intergranular corrosion, as well as on the stability of the passive film, was evaluated. The microstructure was revealed by optical microscopy and scanning electron microscopy, whereas surface topography and roughness levels were determined by atomic force microscopy. Corrosion characteristics were obtained by the electrochemical potentiokinetic reactivation method with double loop, electrochemical impedance spectroscopy method, as well as by potentiodynamic measurements. The degree of sensitization of heat-affected zone (HAZ) was significantly lower than the threshold value required for the occurrence of intergranular corrosion. However, HAZ showed a significantly greater tendency to pitting and uniform corrosion compared to weld metal and base metal. No effect of roughness levels (RMS from 3.6 to 54 nm) on the pitting potential value of the welded joint was observed (unlike in HAZ). The polished surface shows significantly higher corrosion resistance than the grinded surface. Generally, polishing improved corrosion resistance, especially in HAZ, which is very important because HAZ is a critical place for the occurrence of pitting and other types of corrosion.",
publisher = "Wiley",
journal = "Materials and Corrosion",
title = "Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint",
volume = "72",
number = "7",
pages = "1215-1231",
doi = "10.1002/maco.202012241"
}

Kovačina, J., Jegdić, B., Radojković, B., Marunkić, D., Stevanović, S.,& Simović, A.. (2021). Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint. in Materials and Corrosion
Wiley., 72(7), 1215-1231.
https://doi.org/10.1002/maco.202012241

Kovačina J, Jegdić B, Radojković B, Marunkić D, Stevanović S, Simović A. Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint. in Materials and Corrosion. 2021;72(7):1215-1231.
doi:10.1002/maco.202012241 .

Kovačina, Jovanka, Jegdić, Bore, Radojković, Bojana, Marunkić, Dunja, Stevanović, Sanja, Simović, Anđela, "Influence of microstructure and roughness level on corrosion resistance of the austenitic stainless steel welded joint" in Materials and Corrosion, 72, no. 7 (2021):1215-1231,
https://doi.org/10.1002/maco.202012241 . .

TY  - GEN
AU  - Mihailović, Marija
AU  - Jegdić, Bore
AU  - Jugović, Branimir
AU  - Kovačina, Jovanka
AU  - Radojković, Bojana
AU  - Patarić, Aleksandra
AU  - Jokić, Bojan
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4864
AB  - Praćenje pojave i brzine korozije, nastanak termičkih oksida na površini metalnih delova eletroenergetskog postrojenјa, kao i način njihovog otklanjanja na način koji je tehnološki pogodan, ekonomski pristupačan i ekološki opravdan prikazan je u ovom tehničkom rešenju Ispitivanjem je ustanovljeno da su metalni delovi na kojima se javlja korozija izrađeni od na nerđajućeg čelika AISI 304, pa je pojava korozije i termičkih oksida praćena je u odnosu na to, kao i sastav prašine sa kojom su metalni delovi u kontaktu. Pojava termičkih oksida na površini nerđajućih čelika posledica je povišene temperature na mestu zavarivanja metalnih delova.Merena je vrednost pH oba rastvora: etalonskog i zasićenog rastvoru prašine iz pogona.Sastav uzoraka prašine određen je FTIR metodom, pa su na osnovu prisutnih jona u rastvoru definisana ostala ispitivanja.Određivan je korozioni potencijal Ekor, vrednost otpora polarizacije Rp, kao i gustina struje korozije jkor. Sva ispitivanja nerđajućeg čelika u etalonskom rastvoru i u zasićenom rastvoru prašine iz pogona firme naručioca, rađena su za 1 sat i u toku 25 dana.Kao rezultat svih istražoivanja, date su tehnološke preporuke i način otklanjanja korozije i termičkih oksida.Rešenje je prodato naručuicu u toku 2020.godine, a od januara 2021.godine primenjeno u postrojenju naručioca, ELNOS BL d.o.o., koji su izjavom potvrdili primenu ovog tehničkog rešenja u svom poslovanju.
AB  - Monitoring the occurrence and rate of corrosion, the formation of thermal oxides on the surface of metal parts of the power plant, as well as the method of their elimination in a way that is technologically suitable, economically affordable and environmentally justified is shown in this technical solution. It has been established that the metal elements affected by corrosion were made from stainless steel AISI 304. Accordingly, the occurrence of corrosion and thermal oxides was monitored based on the material and the composition of the dust with which the metal parts are in contact. The emergence of thermal oxides on the surface of stainless steels is a consequence of the elevated temperature at the welding site.The pH value of both solutions was measured: standard and saturated solution of dust from the plant. The composition of the dust samples was determined by FTIR. The other tests were defined based on the ions present in the solution.The corrosion potential, the value of the polarization resistance, as well as the corrosion current density were determined. All tests of stainless steel in the standard solution and in the saturated solution of dust were performed for one hour within a span of 25 days.Technological recommendations on how to eliminate corrosion and thermal oxides are provided.The solution has been applied since January 2021 by ELNOS BL d.o.o.
PB  - Belgrade : University of Belgrade - Institute of Chemistry, Technology and Metallurgy
T1  - Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja
T1  - Possibility of removal of corrosion and thermal oxides on metal parts of electric power plant
UR  - https://hdl.handle.net/21.15107/rcub_dais_11630
ER  - 

@misc{
author = "Mihailović, Marija and Jegdić, Bore and Jugović, Branimir and Kovačina, Jovanka and Radojković, Bojana and Patarić, Aleksandra and Jokić, Bojan",
year = "2021",
abstract = "Praćenje pojave i brzine korozije, nastanak termičkih oksida na površini metalnih delova eletroenergetskog postrojenјa, kao i način njihovog otklanjanja na način koji je tehnološki pogodan, ekonomski pristupačan i ekološki opravdan prikazan je u ovom tehničkom rešenju Ispitivanjem je ustanovljeno da su metalni delovi na kojima se javlja korozija izrađeni od na nerđajućeg čelika AISI 304, pa je pojava korozije i termičkih oksida praćena je u odnosu na to, kao i sastav prašine sa kojom su metalni delovi u kontaktu. Pojava termičkih oksida na površini nerđajućih čelika posledica je povišene temperature na mestu zavarivanja metalnih delova.Merena je vrednost pH oba rastvora: etalonskog i zasićenog rastvoru prašine iz pogona.Sastav uzoraka prašine određen je FTIR metodom, pa su na osnovu prisutnih jona u rastvoru definisana ostala ispitivanja.Određivan je korozioni potencijal Ekor, vrednost otpora polarizacije Rp, kao i gustina struje korozije jkor. Sva ispitivanja nerđajućeg čelika u etalonskom rastvoru i u zasićenom rastvoru prašine iz pogona firme naručioca, rađena su za 1 sat i u toku 25 dana.Kao rezultat svih istražoivanja, date su tehnološke preporuke i način otklanjanja korozije i termičkih oksida.Rešenje je prodato naručuicu u toku 2020.godine, a od januara 2021.godine primenjeno u postrojenju naručioca, ELNOS BL d.o.o., koji su izjavom potvrdili primenu ovog tehničkog rešenja u svom poslovanju., Monitoring the occurrence and rate of corrosion, the formation of thermal oxides on the surface of metal parts of the power plant, as well as the method of their elimination in a way that is technologically suitable, economically affordable and environmentally justified is shown in this technical solution. It has been established that the metal elements affected by corrosion were made from stainless steel AISI 304. Accordingly, the occurrence of corrosion and thermal oxides was monitored based on the material and the composition of the dust with which the metal parts are in contact. The emergence of thermal oxides on the surface of stainless steels is a consequence of the elevated temperature at the welding site.The pH value of both solutions was measured: standard and saturated solution of dust from the plant. The composition of the dust samples was determined by FTIR. The other tests were defined based on the ions present in the solution.The corrosion potential, the value of the polarization resistance, as well as the corrosion current density were determined. All tests of stainless steel in the standard solution and in the saturated solution of dust were performed for one hour within a span of 25 days.Technological recommendations on how to eliminate corrosion and thermal oxides are provided.The solution has been applied since January 2021 by ELNOS BL d.o.o.",
publisher = "Belgrade : University of Belgrade - Institute of Chemistry, Technology and Metallurgy",
title = "Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja, Possibility of removal of corrosion and thermal oxides on metal parts of electric power plant",
url = "https://hdl.handle.net/21.15107/rcub_dais_11630"
}

Mihailović, M., Jegdić, B., Jugović, B., Kovačina, J., Radojković, B., Patarić, A.,& Jokić, B.. (2021). Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja. 
Belgrade : University of Belgrade - Institute of Chemistry, Technology and Metallurgy..
https://hdl.handle.net/21.15107/rcub_dais_11630

Mihailović M, Jegdić B, Jugović B, Kovačina J, Radojković B, Patarić A, Jokić B. Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja. 2021;.
https://hdl.handle.net/21.15107/rcub_dais_11630 .

Mihailović, Marija, Jegdić, Bore, Jugović, Branimir, Kovačina, Jovanka, Radojković, Bojana, Patarić, Aleksandra, Jokić, Bojan, "Ispitivanje i otklanјanјe pojave korozije i termičkih oksida na metalnim delovima elektroenergetskog postojenja" (2021),
https://hdl.handle.net/21.15107/rcub_dais_11630 .

TY  - JOUR
AU  - Linić, Suzana
AU  - Linić, Mihailo S.
AU  - Radojković, Bojana
AU  - Ristić, Slavica S.
AU  - Jegdić, Bore
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4778
AB  - This paper presents a study of a free convection flow around the walls of a ventilation mill of the Thermal Power Plant “Kostolac B”, Kostolac, Serbia. A combined method consists of thermography and software post-processing, PATS. The PATS is specially developed for recognition of turbulence zones by the custom processing of large input data sets from thermal videos. The calculations determine maximum temperature fluctuation i.e. peak-to-peak fluctuation at every spot during the recording time. Three thermal videos of the walls were analyzed. Maximum temperature fluctuation occurred in the zones close to the obstacles, which are thus recognized as one of the main sources of turbulence. Besides, PATS has recognized fine camera oscillations and mechanical movements of a flexible material near the dozer wall. The detected zones of turbulence correspond to the previous studies and to the theory. The method shows good potential in the field of free convective flow research through the improvement of testing efficiency and cost savings. State-of-the-art thermograph cameras and updated software are recommended.
PB  - Serbia : Serbian Society of Heat Transfer Engineers
T2  - Thermal Science
T1  - Turbulence recognition in free convective flow by thermal - video post -processing in the case of a thermal power plant mill
VL  - 25
IS  - 4
SP  - 2447
EP  - 2458
DO  - 10.2298/TSCI200907341L
ER  - 

@article{
author = "Linić, Suzana and Linić, Mihailo S. and Radojković, Bojana and Ristić, Slavica S. and Jegdić, Bore",
year = "2021",
abstract = "This paper presents a study of a free convection flow around the walls of a ventilation mill of the Thermal Power Plant “Kostolac B”, Kostolac, Serbia. A combined method consists of thermography and software post-processing, PATS. The PATS is specially developed for recognition of turbulence zones by the custom processing of large input data sets from thermal videos. The calculations determine maximum temperature fluctuation i.e. peak-to-peak fluctuation at every spot during the recording time. Three thermal videos of the walls were analyzed. Maximum temperature fluctuation occurred in the zones close to the obstacles, which are thus recognized as one of the main sources of turbulence. Besides, PATS has recognized fine camera oscillations and mechanical movements of a flexible material near the dozer wall. The detected zones of turbulence correspond to the previous studies and to the theory. The method shows good potential in the field of free convective flow research through the improvement of testing efficiency and cost savings. State-of-the-art thermograph cameras and updated software are recommended.",
publisher = "Serbia : Serbian Society of Heat Transfer Engineers",
journal = "Thermal Science",
title = "Turbulence recognition in free convective flow by thermal - video post -processing in the case of a thermal power plant mill",
volume = "25",
number = "4",
pages = "2447-2458",
doi = "10.2298/TSCI200907341L"
}

Linić, S., Linić, M. S., Radojković, B., Ristić, S. S.,& Jegdić, B.. (2021). Turbulence recognition in free convective flow by thermal - video post -processing in the case of a thermal power plant mill. in Thermal Science
Serbia : Serbian Society of Heat Transfer Engineers., 25(4), 2447-2458.
https://doi.org/10.2298/TSCI200907341L

Linić S, Linić MS, Radojković B, Ristić SS, Jegdić B. Turbulence recognition in free convective flow by thermal - video post -processing in the case of a thermal power plant mill. in Thermal Science. 2021;25(4):2447-2458.
doi:10.2298/TSCI200907341L .

Linić, Suzana, Linić, Mihailo S., Radojković, Bojana, Ristić, Slavica S., Jegdić, Bore, "Turbulence recognition in free convective flow by thermal - video post -processing in the case of a thermal power plant mill" in Thermal Science, 25, no. 4 (2021):2447-2458,
https://doi.org/10.2298/TSCI200907341L . .

TY  - JOUR
AU  - Radojković, Bojana
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Ristić, Slavica R.
AU  - Polić, Suzana R.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3462
AB  - Nd:YAG laser was used for cleaning surfaces of cultural heritage iron artefacts covered with
corrosion products. The corrosion products were removed without damaging the base material.
Three different electrochemical techniques were used for the determination of the corrosion rate of
mechanically prepared iron, laser-cleaned iron and laser-cleaned iron with Paraloid B44 coating.
The morphology of the tested surfaces was analysed by SEM. The linear polarization resistance
technique, electrochemical impedance spectroscopy and linear sweep voltammetry have shown
that the corrosion rate of the laser-cleaned iron is approximately 50 % higher than the corrosion
rate of the mechanically prepared iron. Electrochemical impedance spectroscopy has shown that
the pore resistance of the Paraloid coating on the laser-cleaned iron sample decreases at the
beginning of the test and remains approximately constant after this period. At the beginning of the
test, the charge transfer resistance value is constant and then decreases rapidly i.e. the corrosion
rate of the iron in the Paraloid coating pores increases with time. During the linear sweep
voltammetry test of the iron sample with Paraloid coating, it was noticed that the anodic
polarisation curve shows an unusual shape at the potentials more positive than - 0.5 V
AB  - U ovom radu, Nd:YAG laser je korišćen za čišćenje površina artefakata od gvožđa koji su bili prekriveni korozionim produktima. Korozioni produkti su uklonjeni bez oštećivanja osnovnog materijala. Za određivanje brzine korozije mehanički čišćene površine, laserski čišćene površine i laserski čišćene površine na koju je nakon čišćenja nanesen zaštitni sloj Paraloid B44, korišćene su tri različite elektrohemijske metode. Morfologija čišćenih površina je ispitivana SEM mikroskopijom. Metoda linearne polarizacione otpornosti, elektrohemijska impedansna spektroskopija i voltametrija sa linearnom promenom potencijala pokazale su da je brzina korozije laserski čišćene površine uzorka od gvožđa za oko 50% veća od brzine korozije mehanički čišćene površine. Elektrohemijska impedansna spektroskopija je pokazala da otpornost pora Paraloid prevlake na laserski čišćenoj površini uzorka opada na početku ispitivanja nakon čega dostiže konstantnu vrednost. Na početku ispitivanja, vrednost otpornosti razmeni elektrona je konstantna nakon čega naglo opada, tj. brzina korozije gvožđa u porama Paraloid prevlake raste sa vremenom. Tokom ispitivanja tehnikom voltametrije sa linearnom promenom potencijala na uzorku od gvožđa sa Paraloid prevlakom, zapaženo je da anodna kriva polarizacije ima neuobičajen oblik pri potencijalima pozitivnijim od - 0.5 V
PB  - Belgrade : Engineering Society for Corrosion
T2  - Zaštita materijala
T1  - Corrosion characteristics of laser-cleaned surfaces on iron artefact
T1  - Koroziona svojstva laserski čišćenih površina na artefaktu od gvožđa
VL  - 61
IS  - 1
SP  - 41
EP  - 51
DO  - 10.5937/zasmat2001041R
ER  - 

@article{
author = "Radojković, Bojana and Jegdić, Bore and Bobić, Biljana and Ristić, Slavica R. and Polić, Suzana R.",
year = "2020",
abstract = "Nd:YAG laser was used for cleaning surfaces of cultural heritage iron artefacts covered with
corrosion products. The corrosion products were removed without damaging the base material.
Three different electrochemical techniques were used for the determination of the corrosion rate of
mechanically prepared iron, laser-cleaned iron and laser-cleaned iron with Paraloid B44 coating.
The morphology of the tested surfaces was analysed by SEM. The linear polarization resistance
technique, electrochemical impedance spectroscopy and linear sweep voltammetry have shown
that the corrosion rate of the laser-cleaned iron is approximately 50 % higher than the corrosion
rate of the mechanically prepared iron. Electrochemical impedance spectroscopy has shown that
the pore resistance of the Paraloid coating on the laser-cleaned iron sample decreases at the
beginning of the test and remains approximately constant after this period. At the beginning of the
test, the charge transfer resistance value is constant and then decreases rapidly i.e. the corrosion
rate of the iron in the Paraloid coating pores increases with time. During the linear sweep
voltammetry test of the iron sample with Paraloid coating, it was noticed that the anodic
polarisation curve shows an unusual shape at the potentials more positive than - 0.5 V, U ovom radu, Nd:YAG laser je korišćen za čišćenje površina artefakata od gvožđa koji su bili prekriveni korozionim produktima. Korozioni produkti su uklonjeni bez oštećivanja osnovnog materijala. Za određivanje brzine korozije mehanički čišćene površine, laserski čišćene površine i laserski čišćene površine na koju je nakon čišćenja nanesen zaštitni sloj Paraloid B44, korišćene su tri različite elektrohemijske metode. Morfologija čišćenih površina je ispitivana SEM mikroskopijom. Metoda linearne polarizacione otpornosti, elektrohemijska impedansna spektroskopija i voltametrija sa linearnom promenom potencijala pokazale su da je brzina korozije laserski čišćene površine uzorka od gvožđa za oko 50% veća od brzine korozije mehanički čišćene površine. Elektrohemijska impedansna spektroskopija je pokazala da otpornost pora Paraloid prevlake na laserski čišćenoj površini uzorka opada na početku ispitivanja nakon čega dostiže konstantnu vrednost. Na početku ispitivanja, vrednost otpornosti razmeni elektrona je konstantna nakon čega naglo opada, tj. brzina korozije gvožđa u porama Paraloid prevlake raste sa vremenom. Tokom ispitivanja tehnikom voltametrije sa linearnom promenom potencijala na uzorku od gvožđa sa Paraloid prevlakom, zapaženo je da anodna kriva polarizacije ima neuobičajen oblik pri potencijalima pozitivnijim od - 0.5 V",
publisher = "Belgrade : Engineering Society for Corrosion",
journal = "Zaštita materijala",
title = "Corrosion characteristics of laser-cleaned surfaces on iron artefact, Koroziona svojstva laserski čišćenih površina na artefaktu od gvožđa",
volume = "61",
number = "1",
pages = "41-51",
doi = "10.5937/zasmat2001041R"
}

Radojković, B., Jegdić, B., Bobić, B., Ristić, S. R.,& Polić, S. R.. (2020). Corrosion characteristics of laser-cleaned surfaces on iron artefact. in Zaštita materijala
Belgrade : Engineering Society for Corrosion., 61(1), 41-51.
https://doi.org/10.5937/zasmat2001041R

Radojković B, Jegdić B, Bobić B, Ristić SR, Polić SR. Corrosion characteristics of laser-cleaned surfaces on iron artefact. in Zaštita materijala. 2020;61(1):41-51.
doi:10.5937/zasmat2001041R .

Radojković, Bojana, Jegdić, Bore, Bobić, Biljana, Ristić, Slavica R., Polić, Suzana R., "Corrosion characteristics of laser-cleaned surfaces on iron artefact" in Zaštita materijala, 61, no. 1 (2020):41-51,
https://doi.org/10.5937/zasmat2001041R . .

TY  - JOUR
AU  - Jegdić, Bore
AU  - Bobić, Biljana
AU  - Stevanović, Maja
AU  - Mihailović, Marija
AU  - Daničić, Dunja
AU  - Kovačina, Jovanka
AU  - Radojković, Bojana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3649
AB  - The paper analyses the corrosion behaviour of both naturally and artificially aged AA2024 aluminium alloy in NaCl solution in the presence of the corrosion inhibitor benzotriazole (BTA). The differences between these two aging tempers in terms of resistance to general corrosion are explained as well as the differences in terms of pit formation and pit growth. Based on the values of the polarisation resistance and the corrosion current density, the general corrosion resistance of the alloy is determined in the absence and in the presence of BTA. The resistance to pit formation and pit growth is determined on the basis of the polarisation measurements results. Scanning electron microscopy confirmed the expected differences in the appearance and size of the pits formed in naturally aged and artificially aged alloy. In the presence of the corrosion inhibitor BTA, for both aging tempers of the alloy, the corrosion resistance is significantly higher compared to the resistance in the solution without the inhibitor. The value of the polarisation resistance for both aging tempers increases over time. However, at the same time, the value of the constant phase element increases as well. An explanation for this phenomenon is provided. The calculated average value of the thickness of the adsorbed inhibitor layer on the surface of the aluminium alloy is in accordance with the inhibitor protective ability for both aging tempers.
PB  - Springer
T2  - Metals and Materials International
T1  - Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole
VL  - 26
SP  - 1643
EP  - 1653
DO  - 10.1007/s12540-019-00451-8
ER  - 

@article{
author = "Jegdić, Bore and Bobić, Biljana and Stevanović, Maja and Mihailović, Marija and Daničić, Dunja and Kovačina, Jovanka and Radojković, Bojana",
year = "2020",
abstract = "The paper analyses the corrosion behaviour of both naturally and artificially aged AA2024 aluminium alloy in NaCl solution in the presence of the corrosion inhibitor benzotriazole (BTA). The differences between these two aging tempers in terms of resistance to general corrosion are explained as well as the differences in terms of pit formation and pit growth. Based on the values of the polarisation resistance and the corrosion current density, the general corrosion resistance of the alloy is determined in the absence and in the presence of BTA. The resistance to pit formation and pit growth is determined on the basis of the polarisation measurements results. Scanning electron microscopy confirmed the expected differences in the appearance and size of the pits formed in naturally aged and artificially aged alloy. In the presence of the corrosion inhibitor BTA, for both aging tempers of the alloy, the corrosion resistance is significantly higher compared to the resistance in the solution without the inhibitor. The value of the polarisation resistance for both aging tempers increases over time. However, at the same time, the value of the constant phase element increases as well. An explanation for this phenomenon is provided. The calculated average value of the thickness of the adsorbed inhibitor layer on the surface of the aluminium alloy is in accordance with the inhibitor protective ability for both aging tempers.",
publisher = "Springer",
journal = "Metals and Materials International",
title = "Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole",
volume = "26",
pages = "1643-1653",
doi = "10.1007/s12540-019-00451-8"
}

Jegdić, B., Bobić, B., Stevanović, M., Mihailović, M., Daničić, D., Kovačina, J.,& Radojković, B.. (2020). Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole. in Metals and Materials International
Springer., 26, 1643-1653.
https://doi.org/10.1007/s12540-019-00451-8

Jegdić B, Bobić B, Stevanović M, Mihailović M, Daničić D, Kovačina J, Radojković B. Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole. in Metals and Materials International. 2020;26:1643-1653.
doi:10.1007/s12540-019-00451-8 .

Jegdić, Bore, Bobić, Biljana, Stevanović, Maja, Mihailović, Marija, Daničić, Dunja, Kovačina, Jovanka, Radojković, Bojana, "Resistance to Pit Formation and Pit Growth for Different Tempers of AA2024 Aluminium Alloy in Presence of Benzotriazole" in Metals and Materials International, 26 (2020):1643-1653,
https://doi.org/10.1007/s12540-019-00451-8 . .