摘要
应用电刷镀技术制备了含有纳米ＳｉＣ粉的镍基复合镀层，对该复合镀层的显微硬度和摩擦学性能进行了测试，并讨论了主要工艺参数对这些性能的影响规律。测试结果表明：纳米ＳｉＣ粉的加入可以一定程度的提高复合镀层的硬度。快镍复合纳米ＳｉＣ镀层的摩擦因数低于快镍镀层的摩擦因数。镀液中纳米ＳｉＣ粉和添加剂浓度增加时，复合镀层的摩擦因数有降低趋势。与快镍镀层相比，快镍复合纳米ＳｉＣ镀层的耐磨性有较大幅度的提高。还采用光学显微分析（ＯＭ）和电子探针（ＥＰＭＡ）研究了该复合镀层的表面形貌、组织和元素分布特点并提出了纳米ＳｉＣ粉与镍共沉积的机理。
in this paper, the composite coating of Ni/nano SiC was prepared by brush-plating technology. Its microbardness and tribological properties were examined, and the relationship between the main parameters and above properties were discussed. The test results showed that nano-SiC particles could enhance obviously the hardness of coating, and its friction coefficient was lower than that of Ni coating, and displayed a decreasing tendency when the concentration of nano-SiC and additives in the solution were increased. An evident improvement in wear resistance of composite coating was observed. Optical microscope (OM) and electron probe micro-analyzer (EPMA) were employed to analyze the microstructure, surface morphology and elements distribution of the composite coatings. Based on the experiment results, the mechanism of co-deposition of nano-SiC and Ni was discussed as well.
出处
《中国表面工程》
EI
CAS
CSCD
1999年第3期7-11,共5页
China Surface Engineering
基金
清华大学国家摩擦学重点实验室资金资助
中科院兰州化物所固体润滑实验室开放资金资助
