Experimental Research on Surface Integrity of Shot Peening K417G Superalloy

MA Fangwei; MIN Xianglu; HAN Wei; LIANG Qiaoyun; YUAN Peiyu; TAN Liang

doi:10.16080/j.issn1671-833x.2025.11.064

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Experimental Research on Surface Integrity of Shot Peening K417G Superalloy

更新时间：2026-03-27

- Experimental Research on Surface Integrity of Shot Peening K417G Superalloy
- Aeronautical Manufacturing Technology Vol. 68, Issue 11, Pages: 64-71(2025)
- 作者机构：
  
  1. 中国航发沈阳黎明航空发动机有限责任公司,沈阳,110043
  2. 西北工业大学航空发动机高性能制造工业和信息化部重点实验室,西安,710072
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2025.11.064
  CLC：
- Published：2025
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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.
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. DOI： 10.16080/j.issn1671-833x.2025.11.064.

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. DOI： 10.16080/j.issn1671-833x.2025.11.064.

摘要

为提高涡轮叶片榫齿的疲劳性能，针对K417G铸造高温合金喷丸强化过程，采用2因素5水平响应曲面试验方法开展了喷丸强化工艺试验。研究了喷丸强度和覆盖率对表面粗糙度、残余应力、显微硬度和微观组织的影响，建立了表面粗糙度和表面残余应力的响应曲面预测模型。研究结果表明，喷丸强度对表面完整性特征的影响最为显著，覆盖率次之；喷丸强化工艺参数对表面粗糙度的影响存在饱和点；表面粗糙度和表面残余应力预测值与实测值误差分别小于11%和41%；当喷丸强度为0.13 mmA，覆盖率为220%时可获得的良好表面完整性。

Abstract

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.

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