Influence of surface roughness of PVD coatings on tribological performance in sliding contacts
Document identifier: oai:dalea.du.se:2690
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10.1016/j.surfcoat.2006.08.103Keyword: Engineering and Technology,
Materials Engineering,
Teknik och teknologier,
Materialteknik,
PVD; pin on disc; scratch test; roughness; wear; tribofilmPublication year: 2006Abstract: The influence of surface roughness on the tribological performance, i.e. friction, wear and material pick-up tendency, of two different commercial PVD coatings, TiN and WC/C, in sliding contact with ball bearing steel has been evaluated using two different types of sliding wear laboratory tests. Post-test characterisation using SEM/EDS, AES, ToF-SIMS and XPS was used to evaluate the prevailing friction and wear. The results show that the surface roughness of the coating is of importance in order to control the initial material pick-up tendency and thus the friction characteristics in a sliding contact. Once initiated, the material pick-up tendency will increase, generating a tribofilm at the sliding interface. For steel–TiN sliding couples a FeO-based tribofilm is generated on the two surfaces and FeO/FeO becomes the sliding interface (interfilm sliding) resulting in a high friction coefficient. For steel–WC/C sliding couples the WC/C displays a pronounced running-in behaviour which generates a WO3-based tribofilm on the steel surface while a carbon rich surface layer is formed on the WC/C surface, i.e. WO3/C becomes the sliding interface (interface sliding) resulting in a low friction coefficient.
Authors
Peter Harlin
Högskolan Dalarna; Materialvetenskap
Other publications
>>
Per Carlsson
Högskolan Dalarna; Materialvetenskap
Other publications
>>
Ulf Bexell
Högskolan Dalarna; Materialvetenskap
Other publications
>>
Mikael Olsson
Högskolan Dalarna; Materialvetenskap
Other publications
>>
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header:
identifier: oai:dalea.du.se:2690
datestamp: 2021-04-15T12:55:11Z
setSpec: SwePub-du
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version: 3.7
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recordContentSource: du
recordCreationDate: 2007-04-04
identifier:
http://urn.kb.se/resolve?urn=urn:nbn:se:du-2690
10.1016/j.surfcoat.2006.08.103
titleInfo:
@attributes:
lang: eng
title: Influence of surface roughness of PVD coatings on tribological performance in sliding contacts
abstract: The influence of surface roughness on the tribological performance i.e. friction wear and material pick-up tendency of two different commercial PVD coatings TiN and WC/C in sliding contact with ball bearing steel has been evaluated using two different types of sliding wear laboratory tests. Post-test characterisation using SEM/EDS AES ToF-SIMS and XPS was used to evaluate the prevailing friction and wear. The results show that the surface roughness of the coating is of importance in order to control the initial material pick-up tendency and thus the friction characteristics in a sliding contact. Once initiated the material pick-up tendency will increase generating a tribofilm at the sliding interface. For steel–TiN sliding couples a FeO-based tribofilm is generated on the two surfaces and FeO/FeO becomes the sliding interface (interfilm sliding) resulting in a high friction coefficient. For steel–WC/C sliding couples the WC/C displays a pronounced running-in behaviour which generates a WO3-based tribofilm on the steel surface while a carbon rich surface layer is formed on the WC/C surface i.e. WO3/C becomes the sliding interface (interface sliding) resulting in a low friction coefficient.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Materials Engineering
@attributes:
lang: swe
authority: uka.se
topic:
Teknik och teknologier
Materialteknik
@attributes:
lang: eng
topic: PVD; pin on disc; scratch test; roughness; wear; tribofilm
language:
languageTerm: eng
genre:
publication/journal-article
ref
note:
Published
4
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Harlin
Peter
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Högskolan Dalarna
Materialvetenskap
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Carlsson
Per
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Högskolan Dalarna
Materialvetenskap
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Bexell
Ulf
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Högskolan Dalarna
Materialvetenskap
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Olsson
Mikael
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Högskolan Dalarna
Materialvetenskap
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dateIssued: 2006
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titleInfo:
title: Surface & Coatings Technology
identifier:
0257-8972
1879-3347
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type: volume
number: 201
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type: issue
number: 7
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