激光熔覆耐磨涂层的研究进展  

Development of Wear-resistant Laser Cladding

作　　者：陈浩[1] 潘春旭[2] 潘邻[3] 陶锡麒[3] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430063 [2]武汉大学物理科学与技术学院,武汉430072 [3]武汉材料保护研究所,武汉430033

出　　处：《金属热处理》2002年第9期5-10,共6页Heat Treatment of Metals

摘　　要：介绍了以镍基、钴基合金为主的激光熔覆耐磨涂层的研究进展 ,分析了熔覆层开裂等问题。目前激光熔覆工艺研究较为活跃 ,而对其加热、凝固过程的相变动力学、热力学、扩散过程和界面行为以及熔覆层显微组织、相结构的研究相对较弱 ;对熔覆层开裂问题的研究多集中在工艺参数和凝固组织特征上 ,要彻底解决熔覆层开裂问题 ,应从微观角度入手 。The development of nickel-based and cobalt-based alloy wear-resistant laser cladding was introduced.The cause of cracking in cladding process was mainly analyzed.The current studies are concentrated on laser processing parameters.Meanwhile,there are fewer studies on phase transformation thermodynamics,kinetics,diffusion processing,grain boundary behavior and microstructure of laser cladding layer.As to the cracks in laser cladding layer,the effects of microstructure characteristic and phases of laser cladding on cracks should be studied.

关 键 词：开裂 激光熔覆 耐磨涂层 研究进展 

分 类 号：TG156.99[金属学及工艺—热处理]