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

Renevier, Nathalie orcid iconORCID: 0000-0003-2471-7236, Hamphire, J, Fox, V.C, Witts, J, Allen, T and Teer, D.G (2001) Advantages of using self-lubricating, hard, wear-resistant MoS2-based coatings. Surface and Coatings Technology, 142-14 . pp. 67-77. ISSN 02578972

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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 4×10−17 m3/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.

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