A study on friction coefficient and wear coefficient of coated systems submitted to micro-scale abrasion tests

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dc.contributor.authorCozza R.C.
dc.date.accessioned2019-08-20T00:13:08Z
dc.date.available2019-08-20T00:13:08Z
dc.date.issued2013
dc.description.abstractSeveral works on friction coefficient during abrasive wear tests are available in the literature, but only a few were dedicated to the friction coefficient in micro-abrasive wear tests conducted with rotating ball. This work aims to study the influence of titanium nitride (TiN) and titanium carbide (TiC) coating hardness on the friction coefficient and wear coefficient in ball-cratering micro-abrasive wear tests. A ball of AISI 52100 steel and two specimens of AISI D2 tool steel, one coated with TiN and another coated with TiC, were used in the experiments. The abrasive slurry was prepared with black silicon carbide (SiC) particles and distilled water. Two normal forces and six sliding distances were defined, and both normal and tangential forces were monitored constantly during all tests. The movement of the specimen in the direction parallel to the applied force was also constantly monitored with the help of an electronic linear ruler. This procedure allowed the calculation of crater geometry, and thus the wear coefficient for the different sliding distances without the need to stop the test. The friction coefficient was determined by the ratio between the tangential and the normal forces, and for both TiN and TiC coatings, the values remained, approximately, in the same range (from μ= 0.4 to μ= 0.9). On the other hand, the wear coefficient decreased with the increase in coating hardness. © 2012 Elsevier B.V.
dc.description.firstpage224
dc.description.lastpage233
dc.description.volume215
dc.identifier.citationCOZZA, Ronaldo Câmara. A study on friction coefficient and wear coefficient of coated systems submitted to micro-scale abrasion tests. Surface & Coatings Technology, v. 215, p. 224-233, 2013.
dc.identifier.doi10.1016/j.surfcoat.2012.06.088
dc.identifier.issn0257-8972
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/1890
dc.relation.ispartofSurface and Coatings Technology
dc.rightsAcesso Aberto
dc.subject.otherlanguageBall-cratering wear testing
dc.subject.otherlanguageCoatings
dc.subject.otherlanguageFriction coefficient
dc.subject.otherlanguageThin films
dc.subject.otherlanguageWear coefficient
dc.titleA study on friction coefficient and wear coefficient of coated systems submitted to micro-scale abrasion tests
dc.typeArtigo
fei.scopus.citations47
fei.scopus.eid2-s2.0-84872675500
fei.scopus.subjectAbrasive slurries
fei.scopus.subjectAISI D2
fei.scopus.subjectApplied forces
fei.scopus.subjectCoated systems
fei.scopus.subjectCoating hardness
fei.scopus.subjectCrater geometry
fei.scopus.subjectDistilled water
fei.scopus.subjectFriction coefficients
fei.scopus.subjectMicro-scale abrasion test
fei.scopus.subjectNormal forces
fei.scopus.subjectRotating balls
fei.scopus.subjectSliding distances
fei.scopus.subjectTangential force
fei.scopus.subjectWear coefficient
fei.scopus.subjectWear test
fei.scopus.subjectWear-testing
fei.scopus.updated2024-03-04
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84872675500&origin=inward
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