高熵化设计在硬质合金中的应用  

Applications of High-Entropy Design in Hard Alloys

作　　者：刘咏[1] 钱铖 成会朝[1] 李昆[1] Liu Yong;Qian Cheng;Cheng Huichao;Li Kun(State Key Laboratory of Powder Metallurgy,Central South University,Changsha Hunan 410083,China)

机构地区：[1]中南大学粉末冶金全国重点实验室,湖南长沙410083

出　　处：《硬质合金》2024年第6期438-452,共15页Cemented Carbides

摘　　要：多主元合金,包括高熵合金,由多个主要元素构成,改变了传统合金的设计理念,具有优异的强度-塑性综合调控性能、耐腐蚀、耐高温等特性,为材料性能优化提供了灵活高效的研究思路。在高性能硬质合金材料中,高熵化的概念同时在黏结相和硬质相方面得到了应用。本文针对多主元黏结相和多主元硬质相,重点分析了高熵化对硬质合金材料微观组织、强韧性调控和服役性能的影响机制,并介绍了作者团队的最新研究进展,最后展望了高熵化硬质合金材料的发展前景。Multi-principal-element alloys(MPEAs),including high entropy alloys(HEAs),consist of multiple main elements,altering the design concept of traditional alloys.They exhibit excellent strength-plasticity synergy,corrosion resistance,and high-temperature resistance,providing a flexible and efficient approach to optimizing material performance.In high-performance hard alloys,the concept of high entropy has been significantly applied in both the binder phase and the hard phase.This paper studied multi-principal-element binder and hard phases,focused on the influence of high entropy on the microstructures,strength and toughness control,and service performance of hard alloy materials,and introduced recent progress by the authors.Finally,the development prospects of high-entropy hard alloys were discussed.

关 键 词：多主元合金 高熵合金 硬质合金 黏结相 硬质相 

分 类 号：TG1[金属学及工艺—金属学]