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The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact

Zhu, T.; Shipway, P.H.; Sun, W.

Authors

T. Zhu

W. Sun



Abstract

The paper ‘The third-body approach: a mechanical view of wear’ by Maurice Godet (Wear, 100 (1984), pp 437–452) was perhaps the first to articulate clearly the key role of the rate of debris expulsion from a fretting contact in controlling the overall rate of wear. Whilst subsequent research over the past four decades has acknowledged this, the issue is generally addressed qualitatively rather than quantitatively. There are many parameters which will affect the rate of debris expulsion from a fretting contact, and amongst them is the physical size of the fretting contact. In this paper, for the first time, a physically-based relationship is proposed between the debris-expulsion limited wear rate and the contact size. This relationship is able to account for differences in wear rates observed in tests conducted with different (and evolving) contact geometries (non-conforming contacts) over a range of durations, thus clearly demonstrating the validity of the approach.

Citation

Zhu, T., Shipway, P., & Sun, W. (2019). The dependence of wear rate on wear scar size in fretting: the role of debris (third body) expulsion from the contact. Wear, 440-441, 203081. https://doi.org/10.1016/j.wear.2019.203081

Journal Article Type Article
Acceptance Date Oct 7, 2019
Online Publication Date Oct 9, 2019
Publication Date Dec 15, 2019
Deposit Date Oct 9, 2019
Publicly Available Date Oct 10, 2020
Journal Wear
Print ISSN 0043-1648
Electronic ISSN 1873-2577
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 440-441
Pages 203081
DOI https://doi.org/10.1016/j.wear.2019.203081
Keywords Fretting; Debris; Modelling; Debris flow
Public URL https://nottingham-repository.worktribe.com/output/2790845
Publisher URL https://www.sciencedirect.com/science/article/pii/S0043164819306878?via%3Dihub
Additional Information This article is maintained by: Elsevier; Article Title: The dependence of wear rate on wear scar size in fretting; the role of debris (third body) expulsion from the contact; Journal Title: Wear; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.wear.2019.203081; Content Type: article; Copyright: © 2019 Elsevier B.V. All rights reserved.

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