Non-Destructive Evaluation of the AISI 304 Stainless Steel Susceptibility to Intergranular Corrosion by Electrical Conductivity Measurements
Само за регистроване кориснике
2023
Аутори
Radojković, BojanaJegdić, Bore
Marunkić, Dunja
Pejić, Jovanka
Simović, Anđela
Ćosović, Vladan
Bajat, Jelena
Чланак у часопису (Објављена верзија)
,
The Author(s) under exclusive licence to The Korean Institute of Metals and Materials
Метаподаци
Приказ свих података о документуАпстракт
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 polarizat...ion 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.
Кључне речи:
304 Stainless steel / Intergranular corrosion / DL EPR / Electrical conductivity / SEMИзвор:
Metals and Materials International, 2023Издавач:
- Springer Nature
- The Korean Institute of Metals and Materials
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
Институција/група
IHTMTY - 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 . .