Ni–金刚石复合镀层制备工艺及其性能研究  

Preparation technology and properties of Ni-diamond composite coating

作　　者：徐洋[1] 孙玉利[1] 汤苏扬[1] 左敦稳[1] 颜小童 

机构地区：[1]南京航空航天大学机电学院,南京210016

出　　处：《金刚石与磨料磨具工程》2017年第4期31-37,共7页Diamond & Abrasives Engineering

基　　金：国家自然科学基金面上项目(NO.51375237)资助项目;航空科学基金(NO.2015ZE52055)资助项目;江苏省研究生培养创新工程(NO.SJLX16_0116)资助项目;南京航空航天大学研究生创新基地(实验室)开放基金(NO.kfjj20160520)资助项目

摘　　要：为探究金刚石固结磨料研磨盘的复合电沉积制备工艺,对Ni–金刚石复合镀层制备工艺及其性能进行了研究。通过扫描电镜、显微硬度计、摩擦磨损试验机分析研究镀液金刚石浓度、电流密度、温度、沉积时间对复合镀层质量的影响。经试验得到最佳工艺参数:金刚石浓度40g/L,电流密度3A/dm2,温度50℃,沉积时间90min。经检测Ni–金刚石复合镀层表面平整,且金刚石粉末沉积均匀,复合镀层的耐磨性能相较于传统的镍层明显提高。In order to study the composite electrodeposition process of diamond consolidated abrasive grinding discs,the preparation technology and properties of Ni-diamond composite coating are studied in this paper.The influences of diamond concentration,current density,temperature and deposition time on the quality of composite coating are studied by scanning electron microscopy,microhardness tester and friction and wear tester.A series of preferred Ni-diamond composite electrodeposition process parameters are obtained：diamond concentration 40g/L,current density 3A/dm2,temperature 50 ℃,deposition time 90 min.The surface of Ni-diamond composite coating is flat,the diamond powder has a uniform deposition,and the wear resistance of the composite coating is obviously improved compared with the traditional nickel layer.

关 键 词：Ni–金刚石复合镀层 电流密度 沉积时间 

分 类 号：TQ164[化学工程—高温制品工业] TG74[金属学及工艺—刀具与模具]