An experimental investigation replicating the surface behavior of ground steel gears in mixed lubrication using twin-disk testing part 2: Micropitting

Britton, William ORCID: https://orcid.org/0000-0002-5388-7608, Clarke, Alastair ORCID: https://orcid.org/0000-0002-3603-6000 and Evans, Henry ORCID: https://orcid.org/0000-0002-6989-0190 2024. An experimental investigation replicating the surface behavior of ground steel gears in mixed lubrication using twin-disk testing part 2: Micropitting. Tribology Transactions 10.1080/10402004.2024.2378811

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Abstract

Tooth surfaces in heavily loaded power-transmission gearing can often suffer from surface fatigue on the surface roughness scale, known as micropitting. In this paper, the influence of three variables (pressure, slide-roll ratio and entrainment velocity) on micropitting is investigated using a full-factorial experimental programme using a twin-disk test rig. The results showed that pressure was most influential on micropitting growth during the latter phases of the test, with slide-roll ratio being a more important factor during micropit initiation. The full-factorial nature of these tests allowed two- and three-factor effects to be investigated, demonstrating that micropitting is a complex phenomenon influenced by a network of interconnected effects.

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Engineering
Subjects:	T Technology > TJ Mechanical engineering and machinery
Publisher:	Taylor and Francis
ISSN:	1040-2004
Date of First Compliant Deposit:	13 August 2024
Date of Acceptance:	5 July 2024
Last Modified:	05 Sep 2024 13:51
URI:	https://orca.cardiff.ac.uk/id/eprint/171241

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