Tribological characteristics of Cr/CrN/a-C:H:W/a-C:H coating under boundary lubrication conditions with glycerol mono-oleate (GMO) and molybdenum dithiocarbamate (MoDTC)

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dc.contributor.authorKim, Dong-Wookko
dc.contributor.authorKim, Kyung-Woongko
dc.date.accessioned2016-04-20T06:12:02Z-
dc.date.available2016-04-20T06:12:02Z-
dc.date.created2015-12-30-
dc.date.created2015-12-30-
dc.date.issued2015-11-
dc.identifier.citationWEAR, v.342, pp.107 - 116-
dc.identifier.issn0043-1648-
dc.identifier.urihttp://hdl.handle.net/10203/205155-
dc.description.abstractIn order to employ advanced coatings and thin films in many practical engineering systems, they must be compatible with lubricants. Therefore short-stroke, reciprocating sliding (SRV) tests were performed under boundary lubrication conditions, to investigate the compatibility between two friction modifiers (FMs) and the following coating: Cr/CrN/a-C:H:W/a-C:H. The counter surface of coating was a AISI 52100 steel ball. Three types of fully-formulated SAE 5W-20 oils that consisted of mineral base oils and various lubricant additives were used as fluid lubricants. The lubricating oils were classified by the blended FMs: no FM, glycerol mono-oleate (GMO) and molybdenum dithiocarbamate (MoDTC). Both FMs reduced the friction coefficient. When the MoDTC-containing oil was used, the wear rates of coatings and AISI 52100 steel balls were the highest and the top a-C:H layer was completely worn out. Whereas the wear rates of coatings and AISI 52100 steel balls lubricated with the GMO-containing oil were the lowest in most cases. From these results, it was concluded that the GMO was a compatible FM with the coating and improved tribological characteristics of both sliding surfaces. While the MoDTC was not suitable with the coating, since it remarkably promoted the wear of a-C:H layer.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE SA-
dc.subjectDIAMOND-LIKE CARBON-
dc.subjectDLC COATINGS-
dc.subjectAMORPHOUS-CARBON-
dc.subjectSLIDING VELOCITY-
dc.subjectOIL ADDITIVES-
dc.subjectFRICTION-
dc.subjectWEAR-
dc.subjectFILMS-
dc.subjectPERFORMANCE-
dc.subjectMECHANISMS-
dc.titleTribological characteristics of Cr/CrN/a-C:H:W/a-C:H coating under boundary lubrication conditions with glycerol mono-oleate (GMO) and molybdenum dithiocarbamate (MoDTC)-
dc.typeArticle-
dc.identifier.wosid000365364700013-
dc.identifier.scopusid2-s2.0-84940986918-
dc.type.rimsART-
dc.citation.volume342-
dc.citation.beginningpage107-
dc.citation.endingpage116-
dc.citation.publicationnameWEAR-
dc.identifier.doi10.1016/j.wear.2015.08.011-
dc.contributor.localauthorKim, Kyung-Woong-
dc.contributor.nonIdAuthorKim, Dong-Wook-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorCarbon-based coatings-
dc.subject.keywordAuthorBoundary lubrication-
dc.subject.keywordAuthorSliding friction-
dc.subject.keywordAuthorSliding wear-
dc.subject.keywordPlusDIAMOND-LIKE CARBON-
dc.subject.keywordPlusDLC COATINGS-
dc.subject.keywordPlusAMORPHOUS-CARBON-
dc.subject.keywordPlusSLIDING VELOCITY-
dc.subject.keywordPlusOIL ADDITIVES-
dc.subject.keywordPlusFRICTION-
dc.subject.keywordPlusWEAR-
dc.subject.keywordPlusFILMS-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusMECHANISMS-
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