Simultaneously increasing the strength and ductility of a refractory high-entropy alloy via grain refining
Simultaneously increasing the strength and ductility of a refractory high-entropy alloy via grain refining
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DOI：
10.1016/j.matlet.2016.08.060
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发表时间：
2016-12-01
影响因子：
3
通讯作者：
Yeh, Jien-Wei
中科院分区：
文献类型：
--
作者：
Juan, Chien-Chang;Tsai, Ming-Hung;Yeh, Jien-Wei
研究了HfNbTaTiZr高熵耐热合金的晶粒长大动力学和拉伸性能。在1200-1350 ℃时晶粒生长相当缓慢。活化能为389 kJ/mol，生长指数为3.5。HfNbTaTiZr合金具有高强度、小加工硬化和高塑性。晶粒细化可以同时提高合金的抗拉强度和塑性。(C)2016爱思唯尔B. V.保留所有权利。
The HfNbTaTiZr refractory high-entropy alloy was investigated on the grain growth kinetics and tensile properties. Grain growth at 1200-1350 degrees C is rather slow. The activation energy is 389 kJ/mol and the growth exponent is 3.5. The HfNbTaTiZr alloy has high strength, small work hardening and high ductility. Grain refining is found to enhance the tensile strength and ductility simultaneously. (C) 2016 Elsevier B.V. All rights reserved.