DIAMOND-LIKE CARBON COATINGS ON TI-6AL-4V

被引:19
作者
KUSTAS, FM [1 ]
MISRA, MS [1 ]
WEI, R [1 ]
WILBUR, PJ [1 ]
机构
[1] COLORADO STATE UNIV,DEPT MECH ENGN,FT COLLINS,CO 80523
来源
TRIBOLOGY TRANSACTIONS | 1993年 / 36卷 / 01期
关键词
MOLYBDENUM DISULFIDE; TI ALLOY; FRICTION; WEAR; COMPOSITION; DIAMOND-LIKE CARBON COATING;
D O I
10.1080/10402009308983139
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Diamondlike carbon (DLC) was deposited onto Ti-6Al-4V, using a non-mass analyzed ion beam of methane, for subsequent coating characterization. Prior to successful deposition of DLC, a bond layer development study was required which resulted in the selection of SiC as an effective bond layer material. The DLC/SiC coating exhibited an extremely smooth surface finish, similar to the polished Ti-6Al-4V substrate. Tribology tests, conducted in room temperature air, showed a frictional dependence on load similar to that observed for solid lubricant films, and relatively low friction values, such as 0. 1-0.2. No DLC delamination and minor polishing wear was observed for loads up to 1 kg, which corresponds to an initial Hertz stress above the yield strength of the substrate material DLC failure at the SiC bond layer-Ti-6Al-4V interface was eventually observed at an extremely high load of 2.5 kg.
引用
收藏
页码:113 / 119
页数:7
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