Running-in and micropitting behaviour of steel surfaces under mixed lubrication conditions

Clarke, A. ORCID: https://orcid.org/0000-0002-3603-6000, Weeks, I. J. J., Snidle, R. W. ORCID: https://orcid.org/0000-0001-9333-7195 and Evans, H. P. ORCID: https://orcid.org/0000-0002-6989-0190 2016. Running-in and micropitting behaviour of steel surfaces under mixed lubrication conditions. Tribology International 101 , pp. 59-68. 10.1016/j.triboint.2016.03.007

Preview

PDF - Published Version Available under License Creative Commons Attribution. Download (4MB) | Preview

Abstract

The paper investigates the running-in of hardened steel surfaces under mixed lubrication conditions. Pairs of surfaces of both equal and differing hardness were loaded together under rolling/sliding conditions in a twin-disk rig, and the evolution of surface topography was investigated using in-situ profilometry. Evaluation of roughness parameters, height distributions and profile relocation showed that the running-in of these surfaces is a rapid process where the most prominent asperity tips undergo plastic deformation during the initial loading cycles. Finally, the pair of equal hardness disks, following further running in a separate series of experiments, was found to suffer from micro-pitting. This micropitting predominantly occurred along the tips of prominent asperities, and the potential link between running-in and surface failure is discussed.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Additional Information:	This is an open access article under the terms of the CC-BY Attribution 4.0 International license.
Publisher:	Elsevier
ISSN:	0301-679X
Funders:	EPSRC, British Gear Association, Austrian Research Promotion Agency
Date of First Compliant Deposit:	30 March 2016
Date of Acceptance:	10 March 2016
Last Modified:	17 Aug 2024 06:46
URI:	https://orca.cardiff.ac.uk/id/eprint/88215

Citation Data

Cited 75 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item