Advantages of using self-lubricating, hard, wear-resistant MoS2-based coatings

被引:204
作者
Renevier, NM [1 ]
Hamphire, J [1 ]
Fox, VC [1 ]
Witts, J [1 ]
Allen, T [1 ]
Teer, DG [1 ]
机构
[1] Teer Coatings Ltd, Hartlebury DY10 4JB, Worcs, England
关键词
MoS2; low friction; solid lubricant; machining applications;
D O I
10.1016/S0257-8972(01)01108-2
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The paper reports a summary of MoS2 development through years. The properties of MoS2 coatings can be improved by the co-deposition of small amounts of titanium. These MoS2/Ti composite coatings known as MoST produced by closed-field unbalanced magnetron sputtering, are harder (1000-2000 compared to 400 HV for MoS2), much more wear-resistant (by a factor of 100) and also less sensitive to atmospheric water vapour (improvement by a factor of 2800 compared to MoS2) during tribological testing. They retain a low specific wear rate of 4 X 10(-17) m(3)/N m, a low friction coefficient of 0.02-0.1, and a high load-bearing capacity up to 5 GPa. Alternative MOS2/material composite coatings have been developed with similar properties. These coatings have given excellent industrial results for a wide range of cutting and forming applications. Recent industrial performance data related to the characteristics of these MoST auto-lubricating coatings, which are utilised today in large-scale production, are presented. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:67 / 77
页数:11
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