Kinetics and mechanism of structural transformations of Fe75Ni2Si8B13C2 amorphous alloy induced by thermal treatment
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2011
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Metapodaci
Prikaz svih podataka o dokumentuApstrakt
The kinetics of structural transformations of the Fe75Ni2Si8B13C2 amorphous alloy under non-isothermal conditions was studied. It was shown that the amorphous alloy was stable up to 723 K, when multi-step structural transformations start, involving formation of stable alpha-Fe(Si) and Fe2B crystalline phases, and a metastable Fe15Si3B2 phase, their growth and the decomposition of the metastable phase into the two stable phases. Peakfit software was used to resolve the overlapping peaks corresponding to different crystallization steps, at different heating rates. The kinetic parameters corresponding to each of the steps were evaluated and kinetic triplet for every single step was established (g(alpha) = [-ln(1 - alpha)](1/3), E-a = 375.1 +/- 0.8 kJ/mol and In A = 56.2 +/- 1.0 for step 1; E-a = 341.6 +/- 0.5 kJ/mol and In A = 49.3 +/- 0.5 for step 2). The effects of structural transformations on the established kinetic model were discussed in detail.
Ključne reči:
Amorphous materials / Metallic glasses / Metals and alloys / Thermal analysis / Phase transitionIzvor:
Thermochimica Acta, 2011, 519, 1-2, 83-89Izdavač:
- Elsevier
Finansiranje / projekti:
- Dinamika nelinearnih fizičkohemijskih i biohemijskih sistema sa modeliranjem i predviđanjem njihovih ponašanja pod neravnotežnim uslovima (RS-MESTD-Basic Research (BR or ON)-172015)
- Racionalni dizajn i sinteza biološki aktivnih i koordinacionih jedinjenja i funkcionalnih materijala, relevantnih u (bio)nanotehnologiji (RS-MESTD-Basic Research (BR or ON)-172035)
- Savremeni višekomponentni metalni sistemi i nanostrukturni materijali sa različitim funkcionalnim svojstvima (RS-MESTD-Basic Research (BR or ON)-172037)
DOI: 10.1016/j.tca.2011.02.040
ISSN: 0040-6031
WoS: 000291379700014
Scopus: 2-s2.0-79955844171
Institucija/grupa
IHTMTY - JOUR AU - Minic, D. G. AU - Blagojević, Vladimir A. AU - Mihajlovic, Lj E. AU - Ćosović, Vladan AU - Minić, Dragica M. PY - 2011 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/782 AB - The kinetics of structural transformations of the Fe75Ni2Si8B13C2 amorphous alloy under non-isothermal conditions was studied. It was shown that the amorphous alloy was stable up to 723 K, when multi-step structural transformations start, involving formation of stable alpha-Fe(Si) and Fe2B crystalline phases, and a metastable Fe15Si3B2 phase, their growth and the decomposition of the metastable phase into the two stable phases. Peakfit software was used to resolve the overlapping peaks corresponding to different crystallization steps, at different heating rates. The kinetic parameters corresponding to each of the steps were evaluated and kinetic triplet for every single step was established (g(alpha) = [-ln(1 - alpha)](1/3), E-a = 375.1 +/- 0.8 kJ/mol and In A = 56.2 +/- 1.0 for step 1; E-a = 341.6 +/- 0.5 kJ/mol and In A = 49.3 +/- 0.5 for step 2). The effects of structural transformations on the established kinetic model were discussed in detail. PB - Elsevier T2 - Thermochimica Acta T1 - Kinetics and mechanism of structural transformations of Fe75Ni2Si8B13C2 amorphous alloy induced by thermal treatment VL - 519 IS - 1-2 SP - 83 EP - 89 DO - 10.1016/j.tca.2011.02.040 ER -
@article{ author = "Minic, D. G. and Blagojević, Vladimir A. and Mihajlovic, Lj E. and Ćosović, Vladan and Minić, Dragica M.", year = "2011", abstract = "The kinetics of structural transformations of the Fe75Ni2Si8B13C2 amorphous alloy under non-isothermal conditions was studied. It was shown that the amorphous alloy was stable up to 723 K, when multi-step structural transformations start, involving formation of stable alpha-Fe(Si) and Fe2B crystalline phases, and a metastable Fe15Si3B2 phase, their growth and the decomposition of the metastable phase into the two stable phases. Peakfit software was used to resolve the overlapping peaks corresponding to different crystallization steps, at different heating rates. The kinetic parameters corresponding to each of the steps were evaluated and kinetic triplet for every single step was established (g(alpha) = [-ln(1 - alpha)](1/3), E-a = 375.1 +/- 0.8 kJ/mol and In A = 56.2 +/- 1.0 for step 1; E-a = 341.6 +/- 0.5 kJ/mol and In A = 49.3 +/- 0.5 for step 2). The effects of structural transformations on the established kinetic model were discussed in detail.", publisher = "Elsevier", journal = "Thermochimica Acta", title = "Kinetics and mechanism of structural transformations of Fe75Ni2Si8B13C2 amorphous alloy induced by thermal treatment", volume = "519", number = "1-2", pages = "83-89", doi = "10.1016/j.tca.2011.02.040" }
Minic, D. G., Blagojević, V. A., Mihajlovic, L. E., Ćosović, V.,& Minić, D. M.. (2011). Kinetics and mechanism of structural transformations of Fe75Ni2Si8B13C2 amorphous alloy induced by thermal treatment. in Thermochimica Acta Elsevier., 519(1-2), 83-89. https://doi.org/10.1016/j.tca.2011.02.040
Minic DG, Blagojević VA, Mihajlovic LE, Ćosović V, Minić DM. Kinetics and mechanism of structural transformations of Fe75Ni2Si8B13C2 amorphous alloy induced by thermal treatment. in Thermochimica Acta. 2011;519(1-2):83-89. doi:10.1016/j.tca.2011.02.040 .
Minic, D. G., Blagojević, Vladimir A., Mihajlovic, Lj E., Ćosović, Vladan, Minić, Dragica M., "Kinetics and mechanism of structural transformations of Fe75Ni2Si8B13C2 amorphous alloy induced by thermal treatment" in Thermochimica Acta, 519, no. 1-2 (2011):83-89, https://doi.org/10.1016/j.tca.2011.02.040 . .