高熵合金成分设计与性能研究进展

Research Progress in Composition Design and Properties of High Entropy Alloys

摘要:

高熵合金是一种由等量或较大比例的多元素组成的新型合金，具有较高的熵值和优异的物理化学性能。近年来，高熵合金已在结构材料、磁热材料和催化腐蚀等方面取得一定成果。结合高熵合金材料的性能及应用领域，综述了高熵合金成分设计方法、制备方法及物理化学性能。最后，总结了难熔高熵合金的成分、结构及机械和抗氧化等性能，并对其发展与应用做出展望。

Abstract:

High-entropy alloy （HEA）， composed of multiple elements with equal or near-equal atomic ratio， is a novel kinds of alloy， exhibiting high entropy values and excellent physical and chemical properties. In recent years， there are many significant achievements of HEAs obtained in structural materials， magnetocaloric materials， catalytic corrosion， and other fields. This paper provides a comprehensive review of the composition design methods， preparation techniques， and physical and chemical properties of HEAs. Furthermore， it summarizes the composition， structure， and mechanical and oxidation resistance properties of refractory HEAs. The future development and applications of refractory HEAs have been also prospected.