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

Barman, K.; Shipway, P.H.; Voisey, K.T.; Pattinson, G.

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.

Citation

Barman, K., Shipway, P., Voisey, K., & 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, https://doi.org/10.1016/j.triboint.2018.03.018

• Journal Article Type: Article
• Acceptance Date: Mar 18, 2018
• Online Publication Date: Mar 22, 2018
• Publication Date: Jul 31, 2018
• Deposit Date: Mar 19, 2018
• Publicly Available Date: Mar 23, 2019
• Journal: Tribology International
• Print ISSN: 0301-679X
• Electronic ISSN: 1879-2464
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 123
• DOI: https://doi.org/10.1016/j.triboint.2018.03.018
• Keywords: fretting; molybdenum disulphide; molybdenum disulphide; CuNiIn
• Public URL: https://nottingham-repository.worktribe.com/output/948095
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0301679X18301610?via%3Dihub
• Contract Date: Mar 19, 2018