激光熔覆镍基硅化物涂层研究现状  

Research Status of Ni-Based Metal Silicide Coating Fabricated by Laser Cladding

作　　者：庄乔乔 张培磊[1,2] 刘晓鹏[1,2] ZHUANG Qiaoqiao ZHANG Peilei LIU Xiaopeng(School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China Research ＆ Development Center for Key Technologies of Intelligent Ultra-Intense Laser Processing Equipments, Shanghai University of Engineering Science, Shanghai 201620, China)

机构地区：[1]上海工程技术大学材料工程学院,上海201620 [2]上海工程技术大学高强激光智能加工装备关键技术产学研开发中心,上海201620

出　　处：《热加工工艺》2017年第20期16-19,24,共5页Hot Working Technology

基　　金：国家自然科学基金项目(51375924);上海市自然科学基金项目(12ZR1444500);上海市科委地方高校能力建设项目(13160501200);上海市教委创新项目(14YZ139);上海工程技术大学研究生科研创新项目(15KY0512);上海工程技术大学研究生科研创新项目(16KY0504)

摘　　要：综述了激光熔覆镍基三元金属硅化物涂层的研究现状。对Ni-Cr-Si、Ni-Mo-Si、Ni-Ti-Si体系的金属硅化物涂层的研究现状进行了总结。其中,二元金属硅化物Cr3Si、Mo Si2及Ti5Si3硬质相的高熔点、高强度和抗氧化性使其成为高温结构材料研究的对象。三元金属硅化物Mo2Ni3Si、Ti2Ni3Si及W2Ni3Si具有高硬度和一定的韧性,其作为强化相制备的激光熔覆涂层具有良好的摩擦磨损性能。The research status of Ni-based metal silicide coating fabricated by laser cladding was summarized. The research status of metal silicide coatings such as Ni-Cr-Si, Ni-Mo-Si and Ni-Ti-Si element powder blends was summaried. The binary metal silicides of Cr3Si, MoSi2 and TisSi3 can become a research objective for high temperature structural materials, owning to their high melting point, high hardness and oxidation resistance. The ternary metal silicides of Mo2Ni3Si, Ti2Ni3Si2 and W2Ni3Si have high hardness and high toughness, and the laser claddings coatings prepared by the above strengtheing phases have better friction and wear properties.

关 键 词：激光熔覆 镍基金属硅化物 耐磨性 

分 类 号：TG115[金属学及工艺—物理冶金]