激光熔覆Ni基合金涂层组织性能的研究进展  

Research Progress in Microstructure and Properties of Laser Cladding Ni-based Alloy Coatings

作　　者：王修虎 米国发[1] 李雷 陈晓壮 刘卫东 张利超 Wang Xiuhu;Mi Guofa;Li Lei;Chen Xiaozhuang;Liu Weidong;Zhang Lichao(School of Materials Science and Engineering,Henan Polytechnic University;School of Materials,Shanghai Dianji University;Shanghai Jinbo Laser Technology Co.,Ltd)

机构地区：[1]河南理工大学材料科学与工程学院 [2]上海电机学院材料学院 [3]上海仅博激光技术有限公司

出　　处：《特种铸造及有色合金》2023年第12期1613-1620,共8页Special Casting & Nonferrous Alloys

基　　金：上海市科委“科技创新行动计划”重大专项资助项目(19511105402)。

摘　　要：镍基合金具有良好的耐高温、抗蠕变性,作为激光熔覆材料被广泛应用于各种高性能复杂结构件的快速修复及表面改性。激光增材制造镍基合金虽具有良好的硬度和耐高温性,但在苛刻的服役条件下同时承受高温和高速摩擦作用,熔覆层表面损耗仍然很大,故镍基合金熔覆层的高温耐磨性需要进一步提高与优化。从激光熔覆工艺参数、合金元素含量、增强相、自润滑相及辅助处理对镍基合金激光熔覆层的高温耐磨性能的影响进行综合阐述,分析其所面临的主要难题并提出改进措施。Nickel-based alloy is widely used in rapid repair and surface modification of complex structural parts with high performance due to the excellent high temperature resistance and creep resistance.The laser additive nickel-based alloy exhibits desirable hardness and high temperature resistance,which suffers huge loss under harsh service conditions of high temperature and high-speed friction.Therefore,the high temperature wear resistance of nickel-based alloy cladding layer needs to be further improved and optimized.The research status of high temperature wear resistance of laser cladding nickel-based alloy was comprehensively described in aspects of the laser cladding process parameters,alloying element content,reinforcing phase,self-lubricating phase and auxiliary treatment.The main problems were analyzed and the solutions were proposed.

关 键 词：激光熔覆 镍基合金 高温耐磨性 

分 类 号：TG139[一般工业技术—材料科学与工程] G353.11[金属学及工艺—合金]