激光熔覆的应用基础研究进展  

Development of basic research for application of laser cladding technology

作　　者：张光钧[1] 吴培桂[1] 许佳宁[1] 朱屹峰[1] 吕灵宾[1] 

机构地区：[1]上海工程技术大学材料工程学院激光工业技术研究所,上海201620

出　　处：《金属热处理》2011年第1期5-13,共9页Heat Treatment of Metals

基　　金：国家自然科学基金面上项目(50772066)

摘　　要：针对激光熔覆开裂敏感性大并难以进行大面积熔覆的技术难关,将激光熔覆技术、纳米技术及热喷涂技术相结合,提出了激光单道、搭接及再重叠熔覆过程中的纳米抗裂措施,成功消除了裂纹及孔隙,并制备了与基体冶金结合、具有优异服役性能的较大面积激光熔覆层。The laser cladding and nano-effect,thermal spray combined technology to overcome the difficulty of bigger cracking sensitivity and large surface layer was researched.The single cladding,overlap and scanning again nano-anti-cracking measures were studied.The cladding layer of no-cracks and no-poles metallurgical bonding with the base metal was prepared and the good service properties of large laser cladding were obtained.

关 键 词：激光熔覆 搭接熔覆 搭接再重叠熔覆 开裂敏感性 耐磨性 纳米效应 断裂韧性 

分 类 号：TG156.99[金属学及工艺—热处理] TG174.44[金属学及工艺—金属学]