期刊
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
卷 19, 期 4, 页码 810-813出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-6326(08)60355-6
关键词
DLC; PACVD; chromium plating; water; wear; friction
资金
- European Community
Replacement of lubricating oils with water or low-viscosity fluids is highly desirable in many industrial fields, on account of the environmental and economical advantages. Low lubricity of water might be insufficient for proper operation of hydraulic components, and diamond-like carbon(DLC) coatings are very attractive as solid lubricant films. A remote-plasma PACVD process was utilized to deposit hydrogenated DLC coatings (a-C:H) on different substrates. Micro indentation measurements show that the coating hardness is around 35 GPa. Tribological behavior was evaluated by block-on-ring tests performed in water and water with alumina. The wear rate was calculated after measuring the wear volume by a laser profilemeter. Morphological and compositional analysis of the wear tracks reveal that coating failure may occur by abrasive wear or delamination, depending on the substrate properties. Hard and smooth substrates give the best results and dispersed alumina particles increase the wear rate.
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