English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/111800
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

DC FieldValueLanguage
dc.contributor.authorCandela, J.J.-
dc.contributor.authorJiménez, José Antonio-
dc.contributor.authorFranconetti, P-
dc.contributor.authorAmigó, V.-
dc.identifierdoi: 10.1016/j.jmatprotec.2014.04.035-
dc.identifierissn: 1873-4774-
dc.identifier.citationJournal of Materials Processing Technology 214 (11): 2325- 2332 (2014)-
dc.description.abstractLaser cladding is an effective technique to coat a metallic substrate with a layer of a different nature.It has been widely reported that the most important combined parameters controlling the quality ofthe coating are the specific energy (E) and the powder density ( ). In the present work, clad depositsof Ti6Al4V + 60 wt.% TiC were prepared on a Ti6Al4V substrate using an optimum combination ofEc= 24 J/mm2and c= 3 mg/mm2. These experiments were performed using a laser power of 400 and600 W, in order to study the effect of laser power on the properties of the clad. The microstructure, phasecomposition and nanohardness of the coatings were investigated by optical microscopy, scanning elec-tron microscopy and X-ray diffraction. During laser processing, TiC can be partially converted to TiCX(X = 0.5) due mainly to the TiC dissolution into the laser-generated melting pool and subsequent precipi-tation during cooling. It was observed that the lower laser power limit reduces primary TiC dissolution butit also promotes secondary carbide alignment at the interface. On the other hand, the damage mechanisminduced by high laser power is dominated by primary TiC particle cracking by the high stress concentra-tion at the particle¿matrix interface followed by ductile failure of the matrix. It is also remarkable thatirradiance affects the TiC/TiCxratio despite Ecand care fixed and it determines hardness distributioninside the coating.-
dc.subjectCoating failure mechanism-
dc.subjectTitanium based composite coatings-
dc.subjectTitanium carbide-
dc.subjectCoaxial laser cladding-
dc.titleEffect of laser irradiation on failure mechanism of TiCp reinforced titanium composite coating produced by laser cladding-
dc.description.versionPeer Reviewed-
Appears in Collections:(CENIM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
Show simple item record

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.