潘一帆,刘道新,刘博,胡云辉,王为.喷丸与振动光饰复合处理对GH4169高温合金疲劳性能的影响[J].稀有金属材料与工程,2022,51(8):2955~2962.[Pan Yifan,Liu Daoxin,Liu Dan,Ma Amin,Liu Bo.Effect of Shot Peening Combined Vibration Finishing on Fatigue Behavior of GH4169Superalloy[J].Rare Metal Materials and Engineering,2022,51(8):2955~2962.]
喷丸与振动光饰复合处理对GH4169高温合金疲劳性能的影响
投稿时间:2021-07-13  修订日期:2021-08-14
中文关键词:  GH4169高温合金  喷丸  振动光饰  表面完整性  疲劳
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      本文对比研究了喷丸和喷丸与振动光饰复合处理对GH4169高温合金疲劳性能的影响,利用扫描电子显微镜、粗糙度仪、显微硬度计、X射线应力测试仪分析和测试了试样的表面形貌、表层组织、粗糙度、显微硬度、残余应力场,探讨了表面完整性与疲劳性能的内在联系及作用机制。结果表明复合处理对GH4169合金疲劳性能的改善效果比单独喷丸强化处理更好;复合处理使GH4169高温合金的常温疲劳强度提高了21.6%;500℃预加热100h处理使复合强化GH4169高温合金疲劳强度降低了6%,但仍较未喷丸处理状态提高了14.29%,即复合处理能够有效改善GH4169高温合金常温~500℃高温工况下的抗疲劳性能。
Effect of Shot Peening Combined Vibration Finishing on Fatigue Behavior of GH4169Superalloy
英文关键词:GH4169superalloy  shot peening  vibration finishing  surface integrity  fatigue
英文摘要:
      The effects of shot peening and shot peening combined vibration finishing on the fatigue properties of GH4169superalloy are studied contrastively. The surface morphology, surface structure, roughness, microhardness and residual stress field of the sample were analyzed by scanning electron microscope, roughness profiler, microhardness tester, and X-ray stress tester, and the internal relationship and mechanism of surface integrity and fatigue performance are discussed. The internal relationship between surface integrity and fatigue properties and its mechanism were discussed. The results show that the composite treatment can improve the fatigue performance better. The composite treatment increases the room temperature fatigue strength of GH4169superalloy by 21.6%. Preheating at 500℃for 100h reduces the fatigue strength of composite strengthened GH4169superalloy by 6%, but it is still 14.29% higher than that of the base material. That is to say, the composite treatment can effectively improve the fatigue resistance of GH4169superalloy under high temperature working conditions from room temperature to 500℃.
作者单位E-mail
潘一帆 中国船舶工业集团有限公司第七二五研究所洛阳船舶材料研究所
中航工业西安航空发动机集团有限公司 
1400643072@qq.com 
刘道新 西北工业大学  
刘博 中航工业西安航空发动机集团有限公司  
胡云辉 中航工业西安航空发动机集团有限公司  
王为 中航工业西安航空发动机集团有限公司  
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