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

Mohd Tobi, A. L. and Sun, W. 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 0301679X

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Official URL: http://dx.doi.org/10.1016/j.triboint.2017.01.010

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
Uncontrolled Keywords:Plasticity wear; gross sliding; fretting wear; Ti-6Al-4V
Subjects:T Technology > TS Manufactures > TS200-770 Metal manufactures. Metalworking
Divisions:Faculty of Engineering Technology > Department of Mechanical Engineering Technology
ID Code:10474
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:11 Oct 2018 11:39
Last Modified:11 Oct 2018 11:39

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