Composition Design of High-Entropy Alloys: A Brief Review

High-entropy alloys (HEAs) have attracted significant interest since their conceptualization in 2004, owing to their exceptional properties such as high strength, low-temperature fracture toughness and corrosion resistance. HEAs typically comprise solid solution phases, intermetallics, and/or amorphous phases, with solid solutions being particularly desired for their superior mechanical properties. Accurately predicting phase constituents in HEAs remains a formidable challenge due to their infinite composition space. During the past decade, various strategies have been proposed to design the composition of HEAs. This review aims to provide a brief overview of these strategies, including physical modeling, computational approaches and self-optimizing strategies, thereby providing researchers with current insights and knowledge in this rapidly advancing field.