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激光熔覆的应用基础研究进展
Development of basic research for application of laser cladding technology
【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。
【Abstract】 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;
【Key words】 laser cladding; overlap cladding; scanning again; cracking sensitivity; wear resistance; nano-effect; fracture toughness;
【Key words】 laser cladding; overlap cladding; scanning again; cracking sensitivity; wear resistance; nano-effect; fracture toughness;
【基金】 国家自然科学基金面上项目(50772066)
- 【文献出处】 金属热处理 ,Heat Treatment of Metals , 编辑部邮箱 ,2011年01期
- 【分类号】TG156.99
- 【被引频次】93
- 【下载频次】1367