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

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dc.contributor.author Besharatloo, H.
dc.contributor.author Nicolás Morillas, María de
dc.contributor.author Wheeler, J.M.
dc.contributor.author Mateo, A.
dc.contributor.author Ferrari, Begoña
dc.contributor.author Gordo Odériz, Elena
dc.contributor.author Llanes, L.
dc.contributor.author Roa, J.J.
dc.date.accessioned 2021-01-27T16:29:36Z
dc.date.available 2021-09-01T23:00:04Z
dc.date.issued 2019-12
dc.identifier.bibliographicCitation International Journal of Refractory Metals and Hard Materials, (2019), v. 85, 105064.
dc.identifier.uri http://hdl.handle.net/10016/31801
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.sponsorship This investigation was supported by the Spanish Ministerios de Economía y Competitividad MINECO through grant MAT2015-70780-C4-P. J.J. Roa acknowledges the Serra Hunter programme of the Generalitat de Catalunya.
dc.format.extent 9
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2019 Elsevier Ltd. All rights reserved.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Cermet
dc.subject.other High speed indentation
dc.subject.other Hardness
dc.subject.other Mechanical mapping
dc.subject.other Massive indentation
dc.subject.other Statistical analysis
dc.title Carbon addition effects on microstructure and small-scale hardness for Ti(C,N)-FeNi cermets
dc.type article
dc.description.status Publicado
dc.subject.eciencia Materiales
dc.identifier.doi https://doi.org/10.1016/j.ijrmhm.2019.105064
dc.rights.accessRights restrictedAccess
dc.relation.projectID Gobierno de España. MAT2015-70780-C4-P
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationlastpage 9
dc.identifier.publicationtitle International Journal of Refractory Metals and Hard Materials
dc.identifier.publicationvolume 85(105064)
dc.identifier.uxxi AR/0000024368
carlosiii.embargo.terms 2021-09
dc.contributor.funder Ministerio de Economía y Competitividad (España)
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