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12 LSP前后8Cr4Mo4V钢在旋转弯曲疲劳过程中裂纹的萌生和扩展示意图 |
Fig.12 Schematic diagram of crack initiation and propagation in 8Cr4Mo4V steel before and after LSP during rotating bending fatigue process (a) no LSP; (b) after LSP |
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