The influence to micro structure of laser cladding layer by laser cladding craft parameters is studied, and the micro hardness of laser cladding layer and substrate is tested.

• 研究了工艺参数对激光熔覆层微观组织的影响,测试了熔覆层和基材的显微硬度,获得了无裂纹、孔洞等缺陷的熔覆层。