That method was used for calculating the residual stress of laser cladding layer of the hermetic surface of valves.There is good agreement between our results and the others quoted from literature.

• 对气门密封面激光熔覆钴基合金层的计算结果显示，显微压入硬度法得到的残余应力分布数据与其它方法测得的激光熔覆层残余应力分布数据具有相同的变化趋势。