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The life cycle of a debris particle

Dwyer-Joyce, R.S. (2005) The life cycle of a debris particle. Tribology and Interface Engineering Series, 48. pp. 681-690. ISSN 15723364

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Debris particles exist in most lubrication systems; they are frequently responsible for the early failure of tribological machine elements. Particles come from the surrounding environment, or may be generated within the machine components. As the lubricant circulates, these particles get flushed into the machine elements. Contact pressures are lugh and oil films are small, so that the relatively large particles damage even the hardest gear, bearing, or cam surface. This damage can lead to contact fatigue or wear, and thus premature failure of the whole machine. Further, one failure can result in the generation of further wear debris, often in very great quantities, that then can have a knock-on effect in other parts of the lubricated system. This paper gives an overview of important features of the life cycle of a debris particle; entrainment of debris particles into a contact, resulting surface damage, shortened component life, and debris particle procreation by fatigue and wear. The debris life cycle coincides with the early mortality of the machine element. The methods by which component life, under particulate contaminated conditions, can be determined are reviewed.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright (c) 2005 Elsevier Science B.V. Amsterdam. This is an author produced version of a paper published in Tribology and Interface Engineering Series. Uploaded in accordance with the publisher's self-archiving policy.
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield)
Depositing User: Mr Christopher Hardwick
Date Deposited: 20 Aug 2009 11:05
Last Modified: 08 Feb 2013 16:58
Published Version: http://dx.doi.org/10.1016/S0167-8922(05)80070-7
Status: Published
Publisher: Elsevier Science B.V.
Refereed: Yes
Identification Number: 10.1016/S0167-8922(05)80070-7
URI: http://eprints.whiterose.ac.uk/id/eprint/9185

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