机电工程技术2024，Vol.53Issue(7)：13-17,5.DOI:10.3969/j.issn.1009-9492.2024.07.003
基于超声强化研磨加工的GH4099合金耐磨服役性能提升研究
Study on the Service Performance Improvement of GH4099 Alloy Based on Ultrasonic Strengthening Grinding Process
摘要
Abstract
GH4099 alloy has excellent high temperature thermal stability,high temperature mechanical properties and high temperature creep resistance,and is used in the manufacture of turbine disc and turbine blade of aeroengine.It often works in high temperature,heavy load and high frequency environment,but its service life is reduced due to poor wear resistance.To improve the wear resistance of GH4099 alloy,ultrasonic strengthening grinding process technology is used to process the alloy 0,3,6 and 9 min respectively.The surface of GH4099 alloy plate is processed by ultrasonic strengthening grinding process technology at different durations,and the cross section microhardness,metallographic structure and surface morphology are analyzed before and after processing.At the same time,the wear resistance of the samples before and after processing is analyzed by reciprocating friction and wear test.The results show that with the increase of processing time,the surface microhardness of the material increases gradually,and the maximum is 432.83 HV,which is 43.8% higher than that of the unprocessed sample.When the processing time is 6 min,the friction coefficient of GH4099 alloy sample is 0.47,and the wear rate is 5.78×10-14 m3/(N·m),which is 24.2% and 68.59% lower than that of the unprocessed sample,respectively,indicating that ultrasonic strengthening grinding process can effectively improve the wear resistance of GH4099 alloy.关键词
超声强化研磨/耐磨损性能/GH4099/表面强化/摩擦磨损试验Key words
ultrasonic strengthening grinding process/wear resistance/GH4099/surface strengthening/friction and wear test分类
矿业与冶金引用本文复制引用
刘晓初,唐荟,林子顺,谢智铭,殷浚彬,梁忠伟..基于超声强化研磨加工的GH4099合金耐磨服役性能提升研究[J].机电工程技术,2024,53(7):13-17,5.基金项目
国家重点研发计划项目(2023YFD2101004) （2023YFD2101004）
国家自然科学基金资助项目(51975136) （51975136）
广东省自然科学基金资助项目(2023A1515011723) （2023A1515011723）
教育部产学研协同创新项目(230703950183536、220903950010408) （230703950183536、220903950010408）
广东省高校重点领域专项(2023ZDZX3016、2019KZDZX1009) （2023ZDZX3016、2019KZDZX1009）
广州高校产学研重点项目(202235139) （202235139）
广州大学科研项目(YJ2023034、YJ2021002) （YJ2023034、YJ2021002）
