Excellent strength-ductility synergy in as-cast Al0.6CoCrFeNi2Mo0.08V0.04 high-entropy alloy at room and cryogenic temperatures

被引：20
|
作者：
Dong, Yong [1 ]
Duan, Shougang [1 ]
Huang, Xuan [1 ]
Li, Chuanqiang [1 ]
Zhang, Zhengrong [1 ]
机构：
[1] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Peoples R China
来源：
MATERIALS LETTERS | 2021年 / 294卷
基金：
中国国家自然科学基金;
关键词：
Metals and alloys; Crystal structure; Microstructure; Deformation and fracture; MECHANICAL-PROPERTIES;
D O I：
10.1016/j.matlet.2021.129778
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Al0.6CoCrFeNi2Mo0.08V0.04 high-entropy alloy was prepared by vacuum induction melting. The alloy presented dendrite and inter-dendrite microstructure and showed excellent strength-ductility synergy at room and cryogenic temperatures. At room temperature, the yield strength reached 400 MPa while the elongation exceeded to 39%. With the decrease of temperatures, the yield strength, fracture strength, and the elongation were all improved. The maximum yield strength reached 560 MPa at -196 degrees C and the elongation exceeded 42%. The fracture mechanism was mainly a dimple-type ductile fracture. (C) 2021 Elsevier B.V. All rights reserved.
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页数：4
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