8Cr4Mo4V钢激光冲击残余应力的演化仿真及其对疲劳性能的影响

孙玉凤, 刘伟军, 张宏伟, 苏勇, 魏英华, 刘贵胜, 于兴福

Simulation of Residual Stress Evolution of 8Cr4Mo4V Steel Induced by Laser Shock and Its Influence on Fatigue Performance

SUN Yufeng, LIU Weijun, ZHANG Hongwei, SU Yong, WEI Yinghua, LIU Guisheng, YU Xingfu

图6 LSP前后8Cr4Mo4V钢的硬度和残余应力

Fig.6 Hardness and residual stress of 8Cr4Mo4V steel before and after LSP (a) hardness gradient before and after LSP; (b) simulation and experimental results of residual stress