Wear behaviour of molybdenum disulphide diffusion coatings under vacuum conditions

被引:3
|
作者
Kovalev, E
Ignatiev, M
Smurov, I
Mathia, T
机构
[1] INST SCI & GENIE MAT & PROCEDES, FONT ROMEU, FRANCE
[2] ECOLE NATL INGENIEURS ST ETIENNE, F-42023 ST ETIENNE 2, FRANCE
来源
SURFACE & COATINGS TECHNOLOGY | 1996年 / 80卷 / 1-2期
关键词
wear; molybdenum disulphide; diffusion coating;
D O I
10.1016/0257-8972(95)02703-3
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Strong adhesion is a particular trait of an effective thin film solid lubricant, A new technological process for the synthesis of MoS2 diffusion coatings has been developed to improve the adhesion. It allows formation of the solid lubricant layer with uniform thickness even for details having complex geometrical shapes. The coating consists of the MoS2 as a base layer and the transition zone alloyed with sulphides of substrate elements (Fe, Ni, Cr, etc.), The total thickness of the diffusion coating can be varied between 10-100 mu m. The wear intensity of the MoS2 diffusion coatings is sufficiently low in comparison with that of the traditional MoS2 coatings. The main wear mechanism of the MoS2 diffusion coatings is fatigue wear caused by crack generation. The technology developed is promising for improvement of serviceability, reliability and durability of mechanical units (bearings, gears, seals, etc.) working under vacuum conditions, under high loads and over a wide temperature range.
引用
收藏
页码:157 / 161
页数:5
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