Microstructure and properties of FexCrMnAlCu high-entropy alloy

被引：5
|
作者：
Feng, Li [1 ,2 ]
Yuan, Yudong [1 ]
Bian, Chunhua [3 ]
Wang, Ning [1 ]
Ma, Kai [1 ]
机构：
[1] Lanzhou Univ Technol, Coll Mat Sci & Engn, Lanzhou, Peoples R China
[2] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou, Peoples R China
[3] China Nucl Power Operat Management Co Ltd, Tech Dept, Haiyan, Peoples R China
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 10期
基金：
中国博士后科学基金;
关键词：
High-entropy alloys; micro-organisational structure; mechanical properties; precipitates; strengthening mechanism; MECHANICAL-PROPERTIES; WEAR BEHAVIOR; FABRICATION;
D O I：
10.1080/02670836.2022.2164130
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
FexCrMnAlCu (x = 0, 0.5, 1, 1.5, 2) high-entropy alloys were prepared by vacuum arc melting in this study. The effects of the element Fe on the microstructure evolution, mechanical properties, and wear behaviour of FexCrMnAlCu were evaluated. Results show that all FexCrMnAlCu consisted of dendrites (disordered BCC) and interdendritic (disordered FCC) structures. With an increase in Fe, uniformly distributed rod-like precipitates (phi 50 nm x 300 nm) rich in Al and Cu (ordered BCC) were formed in the dendrites; the volume fraction of the dendrites increased gradually, whereas the content of the interdendritic structures decreased. Through mechanical property testing, it was found that the content of precipitates significantly affected the strength and hardness of the FexCrMnAlCu.
引用
收藏
页码：1245 / 1254
页数：10
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