A Review of Mechanical Properties and Improvement Methods of Medium Entropy Alloys at High Temperature

Medium-entropy alloys (MEA) have excellent mechanical properties and are extremely suitable for applications such as aerospace. However, almost all high- and medium-entropy alloys decrease in strength and ductility at high temperatures. As one of the alternative materials for turbine blades of aircr...

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Veröffentlicht in:JOM (1989) 2024-01, Vol.76 (1), p.353-361
Hauptverfasser: Wang, Lei, Jiao, Yichao, Liu, Ruifan, Wang, Deyu, Yu, Zhigang, Xi, Yuntao, Zhang, Keren, Xu, Shanna, Liu, Haitao, Wen, Lei, Xiao, Xinke, Zhang, Wei, Ji, Jiangtao
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container_end_page 361
container_issue 1
container_start_page 353
container_title JOM (1989)
container_volume 76
creator Wang, Lei
Jiao, Yichao
Liu, Ruifan
Wang, Deyu
Yu, Zhigang
Xi, Yuntao
Zhang, Keren
Xu, Shanna
Liu, Haitao
Wen, Lei
Xiao, Xinke
Zhang, Wei
Ji, Jiangtao
description Medium-entropy alloys (MEA) have excellent mechanical properties and are extremely suitable for applications such as aerospace. However, almost all high- and medium-entropy alloys decrease in strength and ductility at high temperatures. As one of the alternative materials for turbine blades of aircraft engines, high/medium entropy alloys are inevitably subjected to coupling effects of high temperature and high strain rates during service. The present work focuses on improving the mechanical properties of MEAs and briefly describes the mechanical properties at high temperatures and high strain rates. Meanwhile, it integrates literature regarding the methods, including adding high melting point solutes, nanocrystalline MEA and non-isoatomic MEA, to improve the mechanical properties at high temperatures and high strain rates. Finally, we propose the potential research direction and possible problems medium entropy alloys may face in the future.
doi_str_mv 10.1007/sll837-023-06217-3
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source Springer Nature - Complete Springer Journals
subjects Aircraft
Aircraft engines
Airplane engines
Alloys
Deformation
Ductility
Entropy
Heat resistant alloys
High entropy alloys
High strain rate
High temperature
High temperature effects
Mechanical properties
Medium entropy alloys
Melting points
Solid solutions
Steel
Strain hardening
Turbine blades
title A Review of Mechanical Properties and Improvement Methods of Medium Entropy Alloys at High Temperature
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