高熵合金复合涂层研究现状及展望  

Research status and prospect of high entropy alloy composite coatings

作　　者：董天顺[1,2] 刘建辉 陆鹏炜 付彬国 李国禄 马庆亮[1] DONG Tianshun;LIU Jianhui;LU Pengwei;FU Binguo;LI Guolu;MA Qingliang(School of Materials Science and Engineering,Hebei University of Technology,Tianjin 300401,China;Key Lab.for New Functional Materials in Hebei Province,Tianjin 300401,China)

机构地区：[1]河北工业大学材料科学与工程学院,天津300401 [2]河北省新型功能材料重点实验室,天津300401

出　　处：《粉末冶金工业》2024年第1期117-123,共7页Powder Metallurgy Industry

基　　金：河北省自然科学基金面上项目(E2022202111)。

摘　　要：高熵合金涂层能在经济实用的基础上发挥高熵合金的优良综合性能,但其强化方式主要为固溶强化,强化效果有很大局限性,因此有必要在高熵合金涂层中引入硬质颗粒实现复合增强,从而得到性能更加优良的高熵合金复合涂层。综述了制备高熵合金复合涂层的主要技术,如激光熔覆技术、等离子熔覆技术和氩弧熔覆技术,重点介绍了直接添加和原位合成硬质颗粒增强高熵合金复合涂层的研究现状,分析了其组织与结构,并分别从硬度、耐磨性、耐腐蚀性和抗高温氧化性这几个方面论述了硬质颗粒对高熵合金复合涂层性能的影响,最后针对高熵合金复合涂层研究中存在的问题进行了总结和展望。High-entropy alloy coatings can bring out the excellent comprehensive performance of high-entropy al-loy on the basis of economy and practicality,but its strengthening method is mainly solid solution strengthening,and the strengthening effect has great limitations,so it is necessary to introduce hard particles into high-entropy al-loy coatings to achieve composite enhancement,so as to obtain a high-entropy alloy composite coating with better performance.This paper reviews the main techniques for preparing high-entropy alloy composite coatings,such as laser melting technology,plasma melting technology and argon arc melting technology,and focuses on the current research status of direct addition and in-situ synthesis of hard particles to enhance high-entropy alloy composite coatings,analyzes their organization and structure,and discusses the effects of hard particles on high-entropy alloy composite coatings in terms of hardness,wear resistance,corrosion resistance and high-temperature oxidation resis-tance,respectively.Finally,the problems in the research of high-entropy alloy composite coatings are summarized.

关 键 词：高熵合金 复合涂层 制备工艺 硬质颗粒 性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]