Effect of aluminum contents on microstructure and properties of AlxCoCrFeNi alloys

被引：244
作者：
Li, C.
Li, J. C. [1 ]
Zhao, M.
Jiang, Q.
机构：
[1] Jilin Univ, Minist Educ, Key Lab Automobile Mat, Changchun 130022, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2010年 / 504卷
关键词：
High entropy alloys; Microstructure; Properties; HIGH-ENTROPY ALLOY; SOLID-SOLUTION; MECHANICAL-PROPERTIES; THERMAL-STABILITY;
D O I：
10.1016/j.jallcom.2010.03.111
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：
AlxCoCrFeNi alloys with multiprincipal elements (x values in a molar ratio of 1, 1.5, 2, 2.5 and 3) are prepared by using an arc-melting plus casting method. Their microstructure and mechanical properties are investigated. The results show that the structure of the alloys is an ordered BCC, which is considered as a B2 structure. This result confirms that Al promotes the formation of BCC structure especially when Cu in the alloy is absent. The increase of x leads to distortion of the crystalline lattice and the alloy strengthening. The hardness of the alloys increases with x while the highest hardness (740 HV) is achieved when x = 3. (C)2010 Elsevier B.V. All rights reserved.
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页码：S515 / S518
页数：4
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