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dc.contributor.authorChikarakaraa, Evans
dc.contributor.authorPunset Fuste, Miquel
dc.contributor.authorPicas Barrachina, Josep Anton
dc.contributor.authorBrabazon, Dermot
dc.contributor.authorNaher, S.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2011-11-25T12:10:43Z
dc.date.available2011-11-25T12:10:43Z
dc.date.created2011
dc.date.issued2011
dc.identifier.citationChikarakaraa, E. [et al.]. Characterisation of laser modified WC-CoCr coatings. A: ESAFORM Conference on Material Forming. "14th International ESAFORM Conference on Material Forming". Belfast: American Institute of Physics (AIP), 2011, p. 1087-1092.
dc.identifier.isbn978-0-7354-0911-8
dc.identifier.urihttp://hdl.handle.net/2117/14082
dc.description.abstractIn this work the affects of laser characteristics on surface morphology, microstructure, microhardness and wear rates of high velocity oxygen fuel (HVOF) WC–CoCr coatings were investigated. Continuous and pulsed laser treatments were applied on the HVOF coatings using a CO2 laser of 10.6 μm wavelength. Continuous laser treatment significantly improved homogeneity of the coatings. Pulsed laser treatment produced significantly higher discontinuities compared to continuous mode. Microhardness increased by 45% for continuous mode laser modified WC-CoCr coatings. However, wear resistance deteriorated, with a notable 40% increase in wear rate. The variations in coating properties were attributed to the re-melting and rapid quenching of the CoCr bonding matrix allowing for WC redistribution.
dc.format.extent6 p.
dc.language.isoeng
dc.publisherAmerican Institute of Physics (AIP)
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
dc.subject.lcshTribology
dc.subject.lcshCO2 laser surface modification
dc.subject.lcshHVOF
dc.titleCharacterisation of laser modified WC-CoCr coatings
dc.typeConference report
dc.subject.lemacTribologia
dc.contributor.groupUniversitat Politècnica de Catalunya. CDAL - Centre de Disseny d'Aliatges Lleugers i Tractaments de Superfície
dc.identifier.doi10.1063/1.3589661
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac5732672
dc.description.versionPostprint (published version)
local.citation.authorChikarakaraa, E.; Punset, M.; Picas, J.A.; Brabazon, D; Naher, S.
local.citation.contributorESAFORM Conference on Material Forming
local.citation.pubplaceBelfast
local.citation.publicationName14th International ESAFORM Conference on Material Forming
local.citation.startingPage1087
local.citation.endingPage1092


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