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Title:	Mechanical deformation of WC–Co composite micropillars under uniaxial compression
Author:	Tarragó Cifre, Jose María; Roa Rovira, Joan Josep; Jiménez Piqué, Emilio; Keown, Eugene; Fair, Jonathan; Llanes Pitarch, Luis Miguel
Other authors:	Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica; Universitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
Abstract:	In thiswork,WC–Co micropillars machined by focused ion beamhave been tested under uniaxial compression to investigate the stress–strain behavior and associated deformation mechanisms. The results indicate that yielding phenomena is evidenced by multiple strain bursts. Experimental data is found to fall within the bounds defined by the mechanical responses expected for an unconstrained Co-binder like model alloy and a bulk-like constrained binder region in WC–Co composites; capturing then local phase assemblage and crystal orientation effects.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria dels materials -Tungsten carbide-colbalt alloys -Cemented carbides Microcompression testing Plastic deformation Damage mechanisms Focused ion beam (FIB) -Aliatges de carbur de tungstè i cobalt -- Propietats mecàniques
Rights:	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Document type:	Article - Submitted version Article
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