Carbon addition effects on microstructure and small-scale hardness for Ti(C,N)-FeNi cermets

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/177340

dc.contributor	Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials
dc.contributor	Universitat Politècnica de Catalunya. CIEFMA - Centre d'Integritat Estructural, Micromecànica i Fiabilitat dels Materials
dc.contributor.author	Besharatloo, H.
dc.contributor.author	Nicolás Morillas, Maria de
dc.contributor.author	Wheeler, J.M.
dc.contributor.author	Mateo García, Antonio Manuel
dc.contributor.author	Ferrari, Begoña
dc.contributor.author	Gordo Odériz, Elena
dc.contributor.author	Llanes Pitarch, Luis Miguel
dc.contributor.author	Roa Rovira, Joan Josep
dc.date	2019-12-01
dc.identifier.citation	Besharatloo, H. [et al.]. Carbon addition effects on microstructure and small-scale hardness for Ti(C,N)-FeNi cermets. "International journal of refractory metals and hard materials", 1 Desembre 2019, vol. 85, p. 105064:1-105064:9.
dc.identifier.citation	0263-4368
dc.identifier.citation	10.1016/j.ijrmhm.2019.105064
dc.identifier.uri	http://hdl.handle.net/2117/177340
dc.language.iso	eng
dc.relation	https://www.sciencedirect.com/science/article/abs/pii/S0263436819305311
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Materials -- Mechanical properties
dc.subject	Cermet
dc.subject	High speed indentation
dc.subject	Hardness
dc.subject	Mechanical mapping
dc.subject	Massive indentation
dc.subject	Statistical analysis
dc.subject	Materials -- Propietats mecàniques
dc.title	Carbon addition effects on microstructure and small-scale hardness for Ti(C,N)-FeNi cermets
dc.type	info:eu-repo/semantics/submittedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	The current study investigates the influence of carbon addition on the microstructural and micromechanical properties of Ti(C,N)-FeNi cermets with different ceramic/metal phase ratios. Evaluation of small-scale hardness is conducted by using high speed nanoindentation in conjunction with statistical analysis. It allows to gather extremely large data sets (40,000 imprints per grade and condition); and thus, detailed hardness mapping at the microstructure length scale. Subsequent statistical analysis was done by considering three mechanically distinct phases: Ti(C,N) particles, the metallic binder, and one exhibiting the composite behaviour (i.e.imprints probing two-phase regions). In general, it is found that porosity amount is reduced as ceramic/metal phase ratio decreases and carbon is added. Carbon addition is also observed to rise small-scale hardness, but only for two of the defined phases: metallic binder and the composite one. Similar trends are observed regarding the influence of ceramic/metal phase ratio and carbon addition on the inverse hardness-fracture toughness correlation measured under high applied loads.
dc.description.abstract	Peer Reviewed

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