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Entropy 2016, 18(7), 252; doi:10.3390/e18070252

Three Strategies for the Design of Advanced High-Entropy Alloys

Department of Materials Science and Engineering, National Chung Hsing University, Taichung 40227, Taiwan
Academic Editors: An-Chou Yeh and Kevin H. Knuth
Received: 4 May 2016 / Revised: 26 June 2016 / Accepted: 4 July 2016 / Published: 15 July 2016
(This article belongs to the Special Issue High-Entropy Alloys and High-Entropy-Related Materials)
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Abstract

High-entropy alloys (HEAs) have recently become a vibrant field of study in the metallic materials area. In the early years, the design of HEAs was more of an exploratory nature. The selection of compositions was somewhat arbitrary, and there was typically no specific goal to be achieved in the design. Very recently, however, the development of HEAs has gradually entered a different stage. Unlike the early alloys, HEAs developed nowadays are usually designed to meet clear goals, and have carefully chosen components, deliberately introduced multiple phases, and tailored microstructures. These alloys are referred to as advanced HEAs. In this paper, the progress in advanced HEAs is briefly reviewed. The design strategies for these materials are examined and are classified into three categories. Representative works in each category are presented. Finally, important issues and future directions in the development of advanced HEAs are pointed out and discussed. View Full-Text
Keywords: high-entropy alloy; alloy design; second phase high-entropy alloy; alloy design; second phase
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Tsai, M.-H. Three Strategies for the Design of Advanced High-Entropy Alloys. Entropy 2016, 18, 252.

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