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Torsional fretting and torsional sliding wear behaviors of CuNiAl against 42CrMo4 under dry condition

Zhang, Po, Lu, Wenlong, Liu, Xiaojun, Zhai, Wenzheng, Zhou, Mingzhuo and Zeng, Wenhan (2018) Torsional fretting and torsional sliding wear behaviors of CuNiAl against 42CrMo4 under dry condition. Tribology International, 118. pp. 11-19. ISSN 0301-679X

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Abstract

Many wear failures are caused by a combination of fretting wear and sliding wear. In this study, the torsional fretting and torsional sliding wear properties of CuNiAl against 42CrMo4 were comparatively investigated under dry condition using a flat on flat contact tester. Experimental results showed that the sliding friction coefficients declined more dramatically than the fretting friction coefficients when the normal load increased. The fretting wear rate was lower than the sliding wear rate, which was partly due to the solid lubrication effect of the wear debris and strain hardening of the worn surfaces. The dominant wear mechanisms for the fretting tests were oxidation, cracks and delamination, while for the sliding tests were abrasion combined with plastic deformation.

Item Type: Article
Uncontrolled Keywords: Torsional fretting; Torsional sliding; Friction; Wear mechanism
Subjects: T Technology > TJ Mechanical engineering and machinery
Schools: School of Computing and Engineering > Centre for Precision Technologies
Related URLs:
Depositing User: Wenhan Zeng
Date Deposited: 29 Sep 2017 15:54
Last Modified: 29 Sep 2017 16:01
URI: http://eprints.hud.ac.uk/id/eprint/33517

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