The role of a thermally sprayed CuNiIn underlayer in the durability of a dry-film lubricant system in fretting: a phenomenological model

Barman, K. and Shipway, P.H. and Voisey, K.T. and Pattinson, G. (2018) The role of a thermally sprayed CuNiIn underlayer in the durability of a dry-film lubricant system in fretting: a phenomenological model. Tribology International, 123 . pp. 307-315. ISSN 1879-2464

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Abstract

Dry film lubricant coatings (DFL) are employed to reduce friction and damage in highly loaded contacts. Metallic underlayers, e.g. CuNiIn, can be beneficial however, there is no detailed explanation of the mechanism. This work investigates the effect of CuNiIn on fretting of a MoS2-based DFL in a cylinder-on-flat contact with a fretting amplitude of 300 µm. Two test types were run: 1. DFL without CuNiIn; 2. DFL on the cylindrical sample and DFL with CuNiIn underlayer on the flat sample. The CuNiIn increased the system’s durability. A phenomenological model highlighting the important low friction and highly wear resistant interfacial material is developed. The increased durability is ascribed to the high roughness of the CuNiIn onto which the DFL was deposited.

Item Type: Article
Keywords: fretting; molybdenum disulphide; molybdenum disulphide; CuNiIn;
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: https://doi.org/10.1016/j.triboint.2018.03.018
Depositing User: Voisey, Dr KT
Date Deposited: 19 Mar 2018 14:33
Last Modified: 05 Apr 2018 09:19
URI: http://eprints.nottingham.ac.uk/id/eprint/50493

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