The effects of surface defects on the fatigue of water and oil lubricated contacts
The effects of surface defects on the fatigue of water and oil lubricated contacts
A study into effects of surface defects on the rolling contact fatigue of brass and rail steel has been undertaken on a twin-disc rolling-sliding test machine with both oil and water lubrication. Furrows and dents were artificially introduced into the disc surfaces, and surface microcracks and pits were monitored by means of surface replication. The results showed that artificial dents only reduce the fatigue life of the contact with oil, but not water lubrication. With oil lubrication the fatigue failure initiates at the surface defect. However, with water as a lubricant the whole of the surface undergoes cracking with the defect having no preferential effect. The possible mechanisms behind this behaviour are discussed in this paper
surface defect, fatigue, lubricated contact
611-626
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Dwyer-Joyce, R. S.
d9d04a36-baeb-4790-992a-bd8d23e48027
2000
Gao, N.
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Dwyer-Joyce, R. S.
d9d04a36-baeb-4790-992a-bd8d23e48027
Gao, N. and Dwyer-Joyce, R. S.
(2000)
The effects of surface defects on the fatigue of water and oil lubricated contacts.
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 214 (6), .
(doi:10.1243/1350650001543458).
Abstract
A study into effects of surface defects on the rolling contact fatigue of brass and rail steel has been undertaken on a twin-disc rolling-sliding test machine with both oil and water lubrication. Furrows and dents were artificially introduced into the disc surfaces, and surface microcracks and pits were monitored by means of surface replication. The results showed that artificial dents only reduce the fatigue life of the contact with oil, but not water lubrication. With oil lubrication the fatigue failure initiates at the surface defect. However, with water as a lubricant the whole of the surface undergoes cracking with the defect having no preferential effect. The possible mechanisms behind this behaviour are discussed in this paper
Text
Part_J_Journal_Eng_triob_214-2000-611.pdf
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Published date: 2000
Keywords:
surface defect, fatigue, lubricated contact
Identifiers
Local EPrints ID: 22172
URI: http://eprints.soton.ac.uk/id/eprint/22172
ISSN: 1350-6501
PURE UUID: f0f6b83c-4bf4-425f-bd23-9032f309785e
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Date deposited: 07 Feb 2007
Last modified: 16 Mar 2024 03:21
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Author:
R. S. Dwyer-Joyce
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