摘要
针对新能源汽车用铜合金的抗电弧烧蚀性能开展研究,模拟充电桩插头服役状态,在摩擦磨损条件下,研究Te、Cr和Y对铜合金抗电弧烧蚀性能的影响。结果表明:Te和Cr会降低电极首次接触放电烧蚀电流强度,而Y会增加烧蚀电流;添加合金元素会提升铜合金的硬度,并因此降低在摩擦过程中的磨损体积;在氩弧焊抗电弧烧蚀试验中,Cu-0.7Cr-0.5Te-0.1Y合金性能最佳。Cu_(2)Te相、单质Cr相及Y与Te的金属间化合物是提升铜合金抗电弧烧蚀性能的主要原因。
The arc erosion resistance properties of copper alloy for new energy vehicles were studied,the services status of charging pile plug was simulated.The effects of Te,Cr and rare earth Y on the arc ablation resistance of copper alloy were studied under the condition of friction and wear.The results show that the addition of Te and Cr will reduce the ablation current intensity of the electrode′s first contact discharge,while the addition of Y will increase the ablation current.The addition of alloying elements will increase the hardness of copper alloy and reduce the wear volume in the friction process.During argon arc welding experiment,the arc erosion resistance properties of Cu-0.7Cr-0.5Te-0.1Y alloy is the best.Cu_(2)Te particle,element Cr phase and intermetallic compounds between Y and Te are the main reasons to improve the arc erosion resistance of copper alloy.
作者
亚斌
郭泰
许赪
冯斌
蒋博宇
孟令刚
周秉文
张兴国
YA Bin;GUO Tai;XU Cheng;FENG Bin;JIANG Boyu;MENG Linggang;ZHOU Bingwen;ZHANG Xingguo(School of Materials Science and Engineering,Dalian University of Technoloy,Dalian 116023,China;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Ningbo Xing′aoda New Metal Material Co.Ltd.,Ningbo 315460,China;Ningbo Branch of Chinese Academy of Ordnance Science,Ningbo 315103,China;Ningbo Research Institute of Dalian University of Technology,Ningbo 315000,China)
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2022年第5期76-82,共7页
Ordnance Material Science and Engineering
基金
辽宁省自然科学基金(2020-MS-103)
宁波市科技创新2025重大专项(2019B10089)。
关键词
铜合金
合金化
抗电弧烧蚀性能
摩擦磨损
copper alloy
alloying
arc erosion resistance
friction and wear
