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Novel high entropy alloys as binder in cermets: From design to sintering

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dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Nonlinear Solid Mechanicses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorPrieto Muñoz, Estela María
dc.contributor.authorVaz-Romero, Álvaro
dc.contributor.authorGonzalez Julian, J.
dc.contributor.authorAlvaredo Olmos, Paula
dc.contributor.funderComunidad de Madrides
dc.date.accessioned2022-01-12T11:02:07Z
dc.date.available2023-09-01T23:00:06Z
dc.date.issued2021-09
dc.description.abstractIn recent years a new group of alloys has emerged breaking with the classical alloying concepts of physical metallurgy, high entropy alloys (HEA). Their main characteristic is that these alloys present 4 or 5 main elements increasing the entropy of the system and favouring the formation of a single phase. The disordered solid solution leads to develop an alloy with improved properties, in particular high thermal stability, hardness and strength. These properties make this group of alloys attractive as potential candidates for alternative binders in hard materials. In this work, two new compositions have been designed with the aim of obtaining a single BCC phase, reducing the cost and minimizing the presence of critical elements using elements that can present good potential properties for a cermet and with low toxicity and price such as Al, Cr, Mo, Ni, Fe and Ti. The design has been made based on the composition calculation applying the HEA phase formation empirical rules from literature in combination with thermodynamic simulations by Calphad method. The viability of the compositions has been studied through the processing of the compositions by casting and the study of wettability and solubility at high temperature on the hard phase of TiCN. Once the chosen compositions have been validated as competitive binders, cermets have been consolidated by spark plasma sintering (SPS) and the influence of the compositions on the mechanical properties of the compound materials has been studied.en
dc.description.sponsorshipThe current investigation was supported by the Regional Government of Madrid through the program ADITIMAT, ref. S2018/NMT-4411.en
dc.format.extent10
dc.identifier.bibliographicCitationPrieto, E., Vaz-Romero, A., Gonzalez-Julian, J., Guo, S. & Alvaredo, P. (2021). Novel high entropy alloys as binder in cermets: From design to sintering. International Journal of Refractory Metals and Hard Materials, 99, 105592.en
dc.identifier.doihttps://doi.org/10.1016/j.ijrmhm.2021.105592
dc.identifier.issn0263-4368
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue105592
dc.identifier.publicationlastpage10
dc.identifier.publicationtitleInternational Journal of Refractory Metals and Hard Materialsen
dc.identifier.publicationvolume99
dc.identifier.urihttps://hdl.handle.net/10016/33866
dc.identifier.uxxiAR/0000028979
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDComunidad de Madrid. S2018/NMT-4411es
dc.rights© 2021 Elsevier Ltd. All rights reserved.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherHigh entropy alloysen
dc.subject.otherHEAen
dc.subject.otherComposition designen
dc.subject.otherCermetsen
dc.subject.otherAlternative bindersen
dc.subject.otherSpark plasma sinteringen
dc.titleNovel high entropy alloys as binder in cermets: From design to sinteringen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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