稀土铈对高碳钢电机轴化学镀镍-磷合金耐磨性的影响  

Effect of cerium on wear resistance of nickel-phosphorus alloy coating electrolessly plated on motor shaft made of high-carbon steel

作　　者：刘大勇[1] 吴成宝[1] 李家宇[1] 于杰 LIU Dayong;WU Chengbao;LI Jiayu;YU Jie(School of Aircraft Maintenance Engineering,Guangzhou Civil Aviation College,Guangzhou 510470,China;Department of Materials Science and Engineering,Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,China)

机构地区：[1]广州民航职业技术学院飞机维修工程学院,广东广州510470 [2]哈尔滨工业大学深圳研究生院材料科学与工程系,广东深圳518055

出　　处：《电镀与涂饰》2022年第19期1377-1381,共5页Electroplating & Finishing

基　　金：广东省教育科学“十三五”规划项目(2020GXJK315);广州民航职业技术学院国家自然科学基金校级重点培育项目(18X0134);教改项目(JG201903)。

摘　　要：对高碳钢电机轴表面化学镀Ni-P合金,以提高其耐磨性。研究了稀土铈质量浓度对Ni-P合金镀层形貌、相结构、结合力和耐磨性的影响。结果表明:镀液中添加5~20 mg/L Ce^(4+)能够提高镀层的致密性、平整性和结合力。Ce^(4+)质量浓度为20 mg/L时,制备的Ni-P合金镀层结合力达56 N,耐磨性最佳。当Ce^(4+)质量浓度过高(如50 mg/L)时,镀层的综合性能反而不如未加Ce^(4+)时。To improve the wear resistance of motor shaft made of high-carbon steel,a Ni-P alloy coating was prepared on it by electroless plating.The effect of mass concentration of cerium,a rare earth,on the morphology,phase structure,adhesion,and wear resistance of Ni-P alloy coating was studied.The results showed that the compactness,flatness,and adhesion of Ni-P alloy coating could be improved by adding 5-20 mg/L of Ce^(4+)to the plating bath.The Ni-P alloy coating prepared with 20 mg/L of Ce^(4+)featured an adhesion force up to 56 N and the best wear resistance.The comprehensive performance of the coating prepared when the mass concentration of Ce^(4+)was too high such as 50 mg/L was worse than that prepared in the absence of Ce^(4+).

关 键 词：化学镀 镍−磷合金 铈 电机轴 耐磨性 微观结构 结合力 

分 类 号：TQ153.2[化学工程—电化学工业]