The relationship between the microstructure of laser alloyed layer, the distributions of compositions in laser alloyed layer and the Ni contents was analyzed by observation of SEM, EDX,X-ray diffradometer & micro-hadometer.

• 通过扫描电镜,能谱分析、X光物相分析及显微硬度测定对激光表面合金化层的结构及合金元素的分布随与镍含量的关系进行了研究。