A study on the formation and the tribological role of mass transfers layers at rubbing silver-coated surface

Title
A study on the formation and the tribological role of mass transfers layers at rubbing silver-coated surface
Authors
양승호공호성윤의성김대은
Keywords
transfer layer; coating; critical speed; wear map; friction
Issue Date
2002-12
Publisher
한국윤활학회지
Citation
VOL 18, NO 6, 377-383
Abstract
The tribological role of mass transfer layer was studied with silver coatings under various ranges of load and sliding speed. Silver coating was performed with a functionally gradient coating method. Tests were performed in dry sliding conditions, using a ball-on-disk contact configuration, at the load of 0.0196-17.64 N and the sliding speed of 20-1,000 ㎜/s in ambient air. Optical microscope and EPMA analyses showed that contact surfaces were covered with the mass transfer layers of agglomerated wear particles depending upon the contact conditions, and they greatly influenced the tribological characteristics of the surfaces. However, the formation of mass transfer layer was suppressed as the sliding speed increased, and above a critical sliding speed, no mass transfer layer was able to form. For building up a general framework of tribological behavior of the coated silver films, all test data were summarized on a map whose axes are contact pressure and sliding speed.
URI
http://pubs.kist.re.kr/handle/201004/14195
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KIST Publication > Article
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