Effects of Al and Mn on microstructure, magnetic and mechanical properties of Fe40Co40Ni10M10 (M=Al, Mn) medium entropy alloys

被引：5
|
作者：
Chen, Chen [1 ]
Wang, Wei [1 ]
Li, Henan [1 ]
Wei, Peng [1 ]
Zhang, Weiwei [1 ]
Fan, Yanzhou [1 ]
Chen, Junli [1 ]
Yuan, Shuhan [1 ]
Wei, Ran [1 ]
Zhang, Tao [2 ]
Jiang, Jianzhong [3 ]
Wang, Tan [1 ]
Li, Fushan [1 ]
机构：
[1] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
[2] Beihang Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Aerosp Mat & Performance, Beijing 100191, Peoples R China
[3] Zhejiang Univ, Int Ctr New Struct Mat ICNSM, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 890卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Medium entropy alloy; Microstructure; Magnetic properties; Mechanical properties; Magnetic domain; PHASE CONSTITUTION; BEHAVIOR; ROOM; CR; ND;
D O I：
10.1016/j.jallcom.2021.161779
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The influences of Al and Mn on microstructure, magnetic and mechanical properties of Fe40Co40Ni10M10 (M = Al and Mn) medium entropy alloys (MEAs) have been systematically investigated. It is found that the Fe40Co40Ni10Al10 has body-centered cubic (BCC) structure and Fe40Co40Ni10M10 has a mixture of face-centered cubic (FCC) and BCC structures in as-cast state, while the former one changes to FCC + BCC dual-phase structure after heat treatment at 1073 K for 1 h. Fe40Co40Ni10Al10 displays higher saturated magnetization (B-s) as compared to Fe40Co40Ni10M10 in as-cast state, while heat treatment significantly enhances B-s of Fe40Co40Ni10M10. Besides, it is intriguing that Fe40Co40Ni10M10 shows higher yield strength and plasticity compared to Fe40Co40Ni10Al10, while heat treatment could enhance comprehensive mechanical properties of this series of MEAs. In addition, the B-s of heat-treated Fe40Co40Ni10M10 is 187.9 emu/g, which is among the highest in the reported ferromagnetic HEAs/MEAs. The correlation among the composition, phase evolution, magnetic properties, and mechanical properties in these MEAs is discussed in detail. This work provides a novel route for developing high-performance ferromagnetic HEAs/MEAs. (C) 2021 Elsevier B.V. All rights reserved.
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页数：10
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