Thermodynamic assessment of the Fe-Nb-Si system

Nb–Si based alloys have drawn continuously increasing attention due to their excellent high-temperature mechanical properties. The addition of element Fe could improve their poor high-temperature oxidation resistance which largely restricts their application. With the aim to study the effect of Fe a...

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Autores principales: Jiang Y., Li F., Li S.-R., Xu K., Chen L.-L., Deng X.-Z., Huang Y.-Y., Chang K.
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Lenguaje:EN
Publicado: Technical Faculty, Bor 2021
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Acceso en línea:https://doaj.org/article/ad231ed3bc3a490787464c48a671ce84
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spelling oai:doaj.org-article:ad231ed3bc3a490787464c48a671ce842021-11-22T11:04:01ZThermodynamic assessment of the Fe-Nb-Si system1450-53392217-717510.2298/JMMB191220029Jhttps://doaj.org/article/ad231ed3bc3a490787464c48a671ce842021-01-01T00:00:00Zhttp://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100029J.pdfhttps://doaj.org/toc/1450-5339https://doaj.org/toc/2217-7175Nb–Si based alloys have drawn continuously increasing attention due to their excellent high-temperature mechanical properties. The addition of element Fe could improve their poor high-temperature oxidation resistance which largely restricts their application. With the aim to study the effect of Fe addition on the Nb–Si system and to design appropriate alloy composition, the Fe–Nb–Si ternary system was thermodynamically investigated using the CALPHAD (CALculation of PHAse Diagrams) approach aided with the formation enthalpies for ternary compounds at 0 K computed via ab initio calculations. A self-consistent thermodynamic description of the Fe–Nb–Si system was obtained in this work. Key isothermal sections and liquidus projection were presented, and the calculation results showed a good agreement with available experimental data.Jiang Y.Li F.Li S.-R.Xu K.Chen L.-L.Deng X.-Z.Huang Y.-Y.Chang K.Technical Faculty, Borarticlefe-nb-siphase diagramcalphadab initio calculationsMining engineering. MetallurgyTN1-997ENJournal of Mining and Metallurgy. Section B: Metallurgy, Vol 57, Iss 3, Pp 331-340 (2021)
institution DOAJ
collection DOAJ
language EN
topic fe-nb-si
phase diagram
calphad
ab initio calculations
Mining engineering. Metallurgy
TN1-997
spellingShingle fe-nb-si
phase diagram
calphad
ab initio calculations
Mining engineering. Metallurgy
TN1-997
Jiang Y.
Li F.
Li S.-R.
Xu K.
Chen L.-L.
Deng X.-Z.
Huang Y.-Y.
Chang K.
Thermodynamic assessment of the Fe-Nb-Si system
description Nb–Si based alloys have drawn continuously increasing attention due to their excellent high-temperature mechanical properties. The addition of element Fe could improve their poor high-temperature oxidation resistance which largely restricts their application. With the aim to study the effect of Fe addition on the Nb–Si system and to design appropriate alloy composition, the Fe–Nb–Si ternary system was thermodynamically investigated using the CALPHAD (CALculation of PHAse Diagrams) approach aided with the formation enthalpies for ternary compounds at 0 K computed via ab initio calculations. A self-consistent thermodynamic description of the Fe–Nb–Si system was obtained in this work. Key isothermal sections and liquidus projection were presented, and the calculation results showed a good agreement with available experimental data.
format article
author Jiang Y.
Li F.
Li S.-R.
Xu K.
Chen L.-L.
Deng X.-Z.
Huang Y.-Y.
Chang K.
author_facet Jiang Y.
Li F.
Li S.-R.
Xu K.
Chen L.-L.
Deng X.-Z.
Huang Y.-Y.
Chang K.
author_sort Jiang Y.
title Thermodynamic assessment of the Fe-Nb-Si system
title_short Thermodynamic assessment of the Fe-Nb-Si system
title_full Thermodynamic assessment of the Fe-Nb-Si system
title_fullStr Thermodynamic assessment of the Fe-Nb-Si system
title_full_unstemmed Thermodynamic assessment of the Fe-Nb-Si system
title_sort thermodynamic assessment of the fe-nb-si system
publisher Technical Faculty, Bor
publishDate 2021
url https://doaj.org/article/ad231ed3bc3a490787464c48a671ce84
work_keys_str_mv AT jiangy thermodynamicassessmentofthefenbsisystem
AT lif thermodynamicassessmentofthefenbsisystem
AT lisr thermodynamicassessmentofthefenbsisystem
AT xuk thermodynamicassessmentofthefenbsisystem
AT chenll thermodynamicassessmentofthefenbsisystem
AT dengxz thermodynamicassessmentofthefenbsisystem
AT huangyy thermodynamicassessmentofthefenbsisystem
AT changk thermodynamicassessmentofthefenbsisystem
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