铜基镀银层在不同表面状态下的耐蚀性研究  

Study on corrosion resistance of copper matrix silver coating under different surface states

作　　者：周少珍 景元坤 赵书杰 白银浩 孙武魁 高嵩 石磊[4] ZHOU Shaozhen;JING Yuankun;ZHAO Shujie;BAI Yinhao;SUN Wukui;GAO Song;SHI Lei(Electric Power Science Research Institute,State Grid Henan Electric Power Company,Zhengzhou 450052,China;School of Mechanical Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Henan Jiuyu EPRI Electric Power Technology,Zhengzhou 450000,China;Key Laboratory of Materials Liquid Solid Structure Evolution and Processing,Ministry of Education,Shandong University,Jinan 250061,China)

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450052 [2]齐鲁工业大学(山东省科学院)机械工程学院,山东济南250353 [3]河南九域恩湃电力技术有限公司,河南郑州450000 [4]山东大学材料液固结构演变与加工教育部重点实验室,山东济南250061

出　　处：《兵器材料科学与工程》2025年第2期120-125,共6页Ordnance Material Science and Engineering

基　　金：国网河南省电力公司科技计划项目(52170220009Y)。

摘　　要：为探究铜基体的镀银层性能,以成品开关柜梅花动触头触片及自制的15μm镀银铜片为试验对象,分别进行了镀层厚度与表面粗糙度、摩擦磨损及摩擦磨损前后电化学腐蚀等测量试验,重点探究了摩擦磨损试验对试样耐蚀性的影响。结果表明:成品试样银镀层厚度分布不均;划痕宽度比自制品大;表面银镀层高度差比自制试样大;摩擦因数更高,摩擦因数曲线波动更剧烈;经摩擦磨损试验后成品触头触片及自制镀银铜片的自腐蚀电位均减小,腐蚀速率增大,且产生了许多形状不规则的腐蚀坑洞、多种腐蚀产物、杂质,耐蚀性均降低。同时无论是否经过摩擦磨损试验,成品的腐蚀速率均低于自制品。In order to investigate the properties of silver coating copper matrix,the coating thickness and surface roughness,friction and wear,and electrochemical corrosion before and after friction and wear were measured using the contact plate of the finished switch cabinet and the self⁃made 15μm silver⁃coated copper plate as test objects.The influence of friction and wear test on the corrosion resistance of the sample was emphatically investigated.The results show that the thickness of the silver coating is uneven.The width of the scratch is larger than that of the product.The height difference of surface silver coating is larger than that of self⁃made sample.The friction coefficient is higher and the friction coefficient curve fluctuates more violently.After the friction and wear test,the self⁃corrosion potential of the contact plate and the self⁃made silver⁃plated copper plate decreased,the corrosion rate increased,and many irregularly shaped corrosion pits and various corrosion products and impurities are produced,and the corrosion resistance decreased.At the same time,the corrosion rate of the finished product is lower than that of the self⁃produced product regardless of whether it has been tested by friction and wear.

关 键 词：铜基体 镀银层 厚度 表面粗糙度 电化学腐蚀 摩擦磨损 

分 类 号：TG174.4[金属学及工艺—金属表面处理]