Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy

Oxide dispersion strengthened ferritic steel is considered an important structural material in fusion reactors due to its excellent resistance to radiation and oxidation. Fine and dispersed oxides can be introduced into the matrix via the powder metallurgy process. In the present study, large grain...

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Autores principales: Che, Hongyan, Zhai, Yazhong, Yan, Yingjie, Chen, Yongqing, Qin, Wei, Wang, Tiejun, Cao, Rui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8510115/
https://www.ncbi.nlm.nih.gov/pubmed/34640096
http://dx.doi.org/10.3390/ma14195696
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author Che, Hongyan
Zhai, Yazhong
Yan, Yingjie
Chen, Yongqing
Qin, Wei
Wang, Tiejun
Cao, Rui
author_facet Che, Hongyan
Zhai, Yazhong
Yan, Yingjie
Chen, Yongqing
Qin, Wei
Wang, Tiejun
Cao, Rui
author_sort Che, Hongyan
collection PubMed
description Oxide dispersion strengthened ferritic steel is considered an important structural material in fusion reactors due to its excellent resistance to radiation and oxidation. Fine and dispersed oxides can be introduced into the matrix via the powder metallurgy process. In the present study, large grain sizes and prior particle boundaries (PPBs) formed in the FeCrAlY alloy prepared via powder metallurgy. Thermo-mechanical treatment was conducted on the FeCrAlY alloy. Results showed that microstructure was optimized: the average grain diameter decreased, the PPBs disappeared, and the distribution of oxides dispersed. Both ultimate tensile strength and elongation improved, especially the average elongation increased from 0.5% to 23%.
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spelling pubmed-85101152021-10-13 Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy Che, Hongyan Zhai, Yazhong Yan, Yingjie Chen, Yongqing Qin, Wei Wang, Tiejun Cao, Rui Materials (Basel) Article Oxide dispersion strengthened ferritic steel is considered an important structural material in fusion reactors due to its excellent resistance to radiation and oxidation. Fine and dispersed oxides can be introduced into the matrix via the powder metallurgy process. In the present study, large grain sizes and prior particle boundaries (PPBs) formed in the FeCrAlY alloy prepared via powder metallurgy. Thermo-mechanical treatment was conducted on the FeCrAlY alloy. Results showed that microstructure was optimized: the average grain diameter decreased, the PPBs disappeared, and the distribution of oxides dispersed. Both ultimate tensile strength and elongation improved, especially the average elongation increased from 0.5% to 23%. MDPI 2021-09-30 /pmc/articles/PMC8510115/ /pubmed/34640096 http://dx.doi.org/10.3390/ma14195696 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Che, Hongyan
Zhai, Yazhong
Yan, Yingjie
Chen, Yongqing
Qin, Wei
Wang, Tiejun
Cao, Rui
Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy
title Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy
title_full Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy
title_fullStr Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy
title_full_unstemmed Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy
title_short Effect of Thermo-Mechanical Treatment on the Microstructure and Tensile Properties of the Fe-22Cr-5Al-0.1Y Alloy
title_sort effect of thermo-mechanical treatment on the microstructure and tensile properties of the fe-22cr-5al-0.1y alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8510115/
https://www.ncbi.nlm.nih.gov/pubmed/34640096
http://dx.doi.org/10.3390/ma14195696
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