Formation rules of single phase solid solution in high entropy alloys

被引：63

作者：

Jiang, L. ^{[1
]}

Lu, Y. P. ^{[1
]}

Jiang, H. ^{[1
]}

Wang, T. M. ^{[1
]}

Wei, B. N. ^{[2
]}

Cao, Z. Q. ^{[1
]}

Li, T. J. ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, 2 Linggong St, Dalian 116024, Peoples R China

[2] Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2016年 / 32卷 / 06期

基金：

中国国家自然科学基金;

关键词：

High entropy alloys; Structure predication; Alloy design; Solid solution; PRINCIPAL ELEMENT ALLOYS; AL ADDITION; MICROSTRUCTURE; PREDICTION; STABILITY;

D O I：

10.1179/1743284715Y.0000000130

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new empirical rule to form single phase solid solution structured high entropy alloys was proposed by integrating three dependent parameters, i.e. atomic size difference delta, mixing enthalpy Delta H-mix and valence electron concentration VEC. It was found that the single phase face centred cubic solid solution will form if delta<4.27%, -7.27 kJ mol(-1)<Delta H-mix<4 kJ mol(-1) and VEC. 8, while the single phase body centred cubic solid solution will form in the case of delta<4.27%, -7.27 kJ mol(-1)<Delta H-mix<4 kJ mol 21 and VEC<6.87. This empirical rule was verified by typical high entropy alloys that have been reported.

引用

页码：588 / 592

页数：5

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