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The roles of contact conformity, temperature and displacement amplitude on the lubricated fretting wear of a steel-on-steel contact

Warmuth, A.R.; Sun, W.; Shipway, P.H.

The roles of contact conformity, temperature and displacement amplitude on the lubricated fretting wear of a steel-on-steel contact Thumbnail


Authors

A.R. Warmuth

W. Sun



Abstract

This paper investigates the effect of contact geometry, temperature and displacement amplitude on the fretting behaviour of an aero-turbo oil lubricated cylinder-on-flat contact. To be effective, the lubricant needed both to penetrate the contact and then offer protection. Lubricant penetration into the fretting contact is found to be controlled by two physical parameters, namely (i) the width of the contact that remains covered throughout the fretting test and (ii) the lubricant viscosity. The protection offered by the lubricant (assuming that it has successfully penetrated the contact) is influenced by four physical parameters, namely (i) lubricant viscosity, (ii) traverse velocity, (iii) nominal contact pressure, and (iv) chemical effects. The relationship between the three experimental parameters which were varied in the programme of work (temperature, fretting displacement and cylinder radius) and physical parameters which influence the protection offered by the lubricant film can be competing, and therefore complex wear behaviour is observed. The roles of the various parameters in controlling the wear behaviour are presented in a coherent physical framework.

Journal Article Type Article
Acceptance Date Sep 14, 2016
Online Publication Date Oct 1, 2016
Publication Date Oct 1, 2016
Deposit Date Oct 20, 2016
Publicly Available Date Oct 20, 2016
Journal Royal Society Open Science
Electronic ISSN 2054-5703
Publisher The Royal Society
Peer Reviewed Peer Reviewed
Volume 3
Issue 10
Article Number 150637
DOI https://doi.org/10.1098/rsos.150637
Keywords fretting wear, contact geometry, temperature, displacement amplitude, lubricant, wear mechanism
Public URL https://nottingham-repository.worktribe.com/output/822802
Publisher URL http://rsos.royalsocietypublishing.org/content/3/10/150637

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