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

Mohd Tobi, A.L.; Sun, Wei; Shipway, P.H.

Authors

A.L. Mohd Tobi

Wei Sun



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.

Citation

Mohd Tobi, A., Sun, W., & Shipway, P. (in press). Evolution of plasticity-based wear damage in gross sliding fretting of a Ti-6Al-4V non-conforming contact. Tribology International, 113, https://doi.org/10.1016/j.triboint.2017.01.010

Journal Article Type Article
Acceptance Date Jan 10, 2017
Online Publication Date Jan 11, 2017
Deposit Date Jan 13, 2017
Publicly Available Date Jan 13, 2017
Journal Tribology International
Print ISSN 0301-679X
Electronic ISSN 1879-2464
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 113
DOI https://doi.org/10.1016/j.triboint.2017.01.010
Keywords Plasticity wear; Gross sliding, fretting wear; Ti-6Al-4V
Public URL http://eprints.nottingham.ac.uk/id/eprint/39846
Publisher URL http://www.sciencedirect.com/science/article/pii/S0301679X17300105
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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