Research Progress of Refractory High Entropy Alloys:A Review

作     者：Xiaochang Xie Neng Li Wei Liu Shuai Huang Xiaoyong He Qiuying Yu Huaping Xiong Enhui Wang Xinmei Hou Xiaochang Xie;Neng Li;Wei Liu;Shuai Huang;Xiaoyong He;Qiuying Yu;Huaping Xiong;Enhui Wang;Xinmei Hou

作者机构：Collaborative Innovation Center of Steel TechnologyUniversity of Science and Technology BeijingBeijing 100083China Beijing Institute of Aeronautical MaterialsBeijing 100095China 

出 版 物：《Chinese Journal of Mechanical Engineering》 (中国机械工程学报（英文版）)

年 卷 期：2022年第35卷第6期

页      面：1-22页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：National Natural Science Foundation of China(Grant Nos.U2141205,51775525,52175369,52005465,52025041 and 52174294) Fast Support Program(Grant No.80923020405) Beijing Nova Program from Beijing Municipal Science&Technology Commission(Grant No.Z201100006820094). 

主　　题：Refractory high entropy alloy Preparation method Strengthening Plastic deformation Heat treatment 

摘      要：Owing to superior comprehensive performance than conventional superalloys at high temperature,refractory high entropy alloy(RHEA)is becoming a promising candidate for the next generation high-temperature material.Herein,contemporary aspects of corresponding development of RHEAs are reviewed to discuss various factors affecting the organization structure and service performance.It mainly covers alloying system and strengthening mechanism,the preparation method,plastic deformation and the related mechanism,as well as microstructure control by heat treatment.Firstly,the alloy systems and strengthening mechanism are introduced.This is followed by different preparation methods and the comparison of strengths and shortcomings based on different RHEAs.Then,hot deformation behavior and plastic deformation under different loadings are analyzed.Based on this,the influence of heat treatment on microstructures prior to and after the deformation is further summarized.Finally,some important research areas to be carried out in future are pointed out.This review will give a deep understanding of the effects of different factors on the service performance and provide scientific guide in designing RHEAs with improved performance.