Annealing on the structure and properties evolution of the CoCrFeNiCuAl high-entropy alloy

被引：194
|
作者：
Zhang, K. B. [1 ]
Fu, Z. Y. [1 ]
Zhang, J. Y. [1 ]
Shi, J. [2 ]
Wang, W. M. [1 ]
Wang, H. [1 ]
Wang, Y. C. [1 ]
Zhang, Q. J. [1 ]
机构：
[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
[2] Wuhan Univ, Coll Phys Sci & Technol, Wuhan 430072, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 502卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Annealing; Microstructure; Mechanical properties; Magnetic properties; MICROSTRUCTURE;
D O I：
10.1016/j.jallcom.2009.11.104
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 equiatomic multiprincipal CoCrFeNiCuAl high-entropy alloy was prepared using a vacuum arc melt casting method. The as-cast alloy was subsequently annealed at 1000 degrees C for 2 h and the annealing effects on the structure and properties evolution were investigated. The as-cast alloy is composed of simple BCC and FCC solid solutions. The "2" FCC phase precipitates from the ordered BCC matrix and the FCC phases become dominated after the alloy was annealed. Both alloys show typical cast-dendrite morphology and similar elemental segregation. The as-annealed alloy exhibits high strength and excellent ductility of 1.63 GPa and 34%, respectively. Both alloys possess high saturated magnetization and undergo a ferromagnetic transition. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：295 / 299
页数：5
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