Experimental Research on Surface Integrity of Shot Peening K417G Superalloy
MA Fangwei1, MIN Xianglu1, HAN Wei1, LIANG Qiaoyun1, YUAN Peiyu2, TAN Liang2
1. AECC Shenyang Liming Aero-Engine Co. Ltd., Shenyang 110043, China;
2. Key Laboratory of High Performance Manufacturing for Aero Engine, Ministry of Industry and Information Technology, Northwestern Polytechnical University, Xi’an 710072, China
To improve the fatigue performance of turbine blade tenon, the surface integrity characteristics of K417G superalloy were studied by using a two-factor five-level response surface test method. The effects of shot peening intensity and coverage on surface roughness, residual stress, microhardness, and microstructure of K417G superalloy were investigated. Two response surface models of surface roughness and surface residual stress were established. The results show that, compared with shot peening coverage, shot peening intensity has a more significant effect on surface integrity characteristics. There is a saturation point of surface roughness with the increase of shot peening parameters. The error between the predicted and measured values of surface roughness and residual stress is less than 11% and 41%, respectively. When shot peening intensity is 0.13 mmA and coverage is 220%, better surface integrity characteristics can be obtained.
马芳薇，闵祥禄，韩巍，梁巧云，袁沛雨，谭靓. K417G铸造高温合金喷丸强化表面完整性试验研究[J]. 航空制造技术, 2025, 68(11): 64-71.
MA Fangwei, MIN Xianglu, HAN Wei, LIANG Qiaoyun, YUAN Peiyu, TAN Liang. Experimental Research on Surface Integrity of Shot Peening K417G Superalloy[J]. Aeronautical Manufacturing Technology, 2025, 68(11): 64-71.
2025, 
