材料工程2025，Vol.53Issue(12)：32-42,11.DOI:10.11868/j.issn.1001-4381.2025.000059
热处理工艺对冷喷涂CuNiIn涂层显微组织、力学性能及微动磨损特性的影响
Effect of heat treatment process on microstructure,mechanical property and fretting wear performance of cold sprayed CuNiIn coatings
摘要
Abstract
In the connection between aero-engine blades and disk tenon grooves,CuNiIn alloy is frequently applied as an anti-fretting wear coating.To investigate the effects of heat treatment processes on the microstructure and properties of the coating,this study employs the cold spraying technology to prepare CuNiIn coatings on TC4 alloy.The influences of two process parameters(heat treatment temperature and holding time)on the coating's microstructure,microhardness,bonding strength,and fretting wear perfor-mance are analyzed and compared.The results indicate that after heat treatment,the pores in the coating undergo healing,and the porosity of the coatings decreases from 7.4%in the as-sprayed state to 0.8%(700℃),resulting in a more uniform distribution of microhardness.Considering overall performance,the coating exhibits optimal properties after being held at 500℃for 3 h.At this stage,the porosity is 1.1%,the bonding strength reaches 54 MPa,and the coating microhardness remains at 131HV.The wear rate significantly reduces,with the dominant wear mechanism shifting from abrasive wear to adhesive wear.关键词
冷喷涂/热处理/CuNiIn涂层/微观组织/结合强度/显微硬度/微动磨损Key words
cold spraying/heat treatment/CuNiIn coating/microstructure/bonding strength/microhardness/fretting wear分类
矿业与冶金引用本文复制引用
LIU Zeshi,FAN Jilin,ZHANG Yuanying,XU Zhuoqing,MA Xin,LIU Ruoyu,HUANG Chunjie,XU Yaxin,LI Wenya..热处理工艺对冷喷涂CuNiIn涂层显微组织、力学性能及微动磨损特性的影响[J].材料工程,2025,53(12):32-42,11.基金项目
中国航空发动机集团产学研合作项目(HFZL2023CXY023) （HFZL2023CXY023）
凝固技术国家重点实验室(西北工业大学)自主研究课题资助项目(2021-TZ-01) （西北工业大学）
