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.

引用

页数：4

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