Morphology and tribological properties of Ni/n-SiO2 composite coatings by pulse-reverse current brush-plating

被引：0
作者：
Jun Tan
Wen-cai Guo
Hong-jun Yang
Liang Zhou
机构：
[1] National Key Laboratory for Remanufacturing,General Armaments Department
[2] Changsha Military Representative Office,undefined
[3] Wuhan Bureau,undefined
来源：
Journal of Central South University of Technology | 2005年 / 12卷
关键词：
pulse-reverse current(RC); brush-plating; nano composite coating; tribological property; TQ153.2;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Ni/n-SiO2 composite coating was electrodeposited by brush-plating with pulse-reverse current(RC). The morphology, hardness, and tribological properties of the coating were investigated and compared with those of Ni and composite coatings electrodeposited with direct current (DC). The results indicate that Ni/n-SiO2 composite coating electrodeposited by RC, because of RC and the nano powders, has denser coating, finer crystal grains, higher hardness (HV650.0, nearly 1.5 times higher than that of Ni coating electrodeposited by DC) and lower friction coefficient (nearly 0.62), as a result, in the wearing experiment, the Ni/n-SiO2 composite coating electrodeposited by RC has the least worn loss. So this kind of coating has better wear resistance. And RC electro brush-plating can be used as a new technology of brush-plating in the area of wear resistance.
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页码：172 / 175
页数：3
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