Evolution of plasticity-based wear damage in gross sliding fretting of a Ti-6Al-4V non-conforming contact

Mohd Tobi, A.L. and Sun, Wei and Shipway, P.H. (2017) Evolution of plasticity-based wear damage in gross sliding fretting of a Ti-6Al-4V non-conforming contact. Tribology International, 113 . pp. 474-486. ISSN 1879-2464

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Abstract

This paper examines the evidence for a plasticity based wear mechanism in the fretting wear of Ti-6Al-4V. Driven by near-surface plastic strain accumulation, the generation of wear debris evolves from coarse metallic debris towards loose fine oxide debris generating W-shape wear scar. The overall wear effect however, is less pronounced at the later stages of wear due to a reduced propensity for plastic deformation in the contact associated with wear induced contact pressure reduction. The evidence suggests that the high wear rate at the early stages of a fretting test are due to debris = generation associated with gross plasticity whilst at the later stages, lower wear is associated with less plasticity accumulation.

Item Type: Article
Keywords: Plasticity wear; Gross sliding, fretting wear; Ti-6Al-4V
Schools/Departments: University of Nottingham, UK > Faculty of Engineering
Identification Number: 10.1016/j.triboint.2017.01.010
Depositing User: Eprints, Support
Date Deposited: 13 Jan 2017 11:52
Last Modified: 10 Jun 2017 00:30
URI: http://eprints.nottingham.ac.uk/id/eprint/39846

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