激光熔覆陶瓷颗粒增强高熵合金涂层的研究进展  

Research Progress of Laser Cladding Ceramic Particle Reinforced High Entropy Alloy Coating

作　　者：吴文宁 孙文磊[1] 陆靖 于江通 Wu Wenning;Sun Wenlei;Lu Jing;Yu Jiangtong(School of Mechanical Engineering,Xinjiang University,Urumqi 830017,Xinjiang,China)

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830017

出　　处：《应用激光》2024年第5期38-48,共11页Applied Laser

基　　金：自治区重点实验室开放基金(2020520002)。

摘　　要：利用激光熔覆技术制备的高熵合金涂层具有优异的综合力学性能,近年来成为金属材料邻域的研究热点。研究发现,在利用激光熔覆技术制备高熵合金涂层时,添加硬质陶瓷颗粒可以显著改善高熵合金涂层硬度、耐磨和耐腐蚀性能。归纳总结了硬质陶瓷颗粒增强激光熔覆高熵合金涂层性能强化机理,接着从直接添加和原位合成两个方面综述了近几年常用的陶瓷颗粒增强相,详细总结了陶瓷颗粒增强相对高熵合金涂层显微组织和性能影响。最后,对激光熔覆陶瓷颗粒增强高熵合金复合涂层的发展前景进行了展望。The high entropy alloy coating prepared by laser cladding technology has excellent comprehensive mechanical properties and has become a research hotspot in the field of metal materials in recent years.It is found that adding hard ceramic particles can significantly improve the hardness,wear and corrosion resistance of high entropy alloy coatings prepared by laser cladding technology.In this paper,the strengthening mechanism of hard ceramic particle reinforced laser cladding high entropy alloy coating is summarized.Then,the ceramic particle reinforcement phases commonly used in recent years are reviewed from the aspects of direct addition and in-situ synthesis.The influence of ceramic particle reinforced phases on the microstructure and properties of high entropy alloy coatings are summarized.Finally,the development prospect of laser cladding ceramic particle reinforced high entropy alloy composite coating is prospected.

关 键 词：激光熔覆 高熵合金 陶瓷颗粒 强化机理 

分 类 号：TG174.4[金属学及工艺—金属表面处理]