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Microstructure and compression strength of Co-based superalloys hardened by γ' and carbide precipitation

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorCartón Cordero, Marta
dc.contributor.authorCampos Gómez, Mónica
dc.contributor.authorFreund, Lisa P.
dc.contributor.authorKolb, Markus
dc.contributor.authorNeumeier, Steffen
dc.contributor.authorGöken, Mathias
dc.contributor.authorTorralba Castelló, José Manuel
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2022-04-26T11:17:29Z
dc.date.available2022-04-26T11:17:29Z
dc.date.issued2018-09-12
dc.descriptionTítulo de la versión aceptada del artículo: Formation of a γ/γ' microstructure in Co-based superalloys produced by a powder metallurgy routeen
dc.description.abstractA Co-based superalloy, Co-9Al-9W (at%), was processed by mechanical alloying by high-energy milling of elemental powders and consolidated by field assisted hot pressing (FAHP). The milled powder particles mainly consist of undissolved bcc-W as well as WC and an Al and W rich fcc-γ Co solid solution. After consolidation and heat treatment a fine grained microstructure with a high fraction of carbides and a γ/γ′ microstructure was obtained. The compressive yield strength at room temperature was found to be 45% higher than that of previously reported results for Co-based superalloys. A similar level of strength was found at 700 °C. These extraordinary properties can be explained due to the multitude of hardening mechanisms that sintered Co-based superalloys possess: γ′ precipitation, carbide formation and the ultra-fine γ-grain size promoted by the fast consolidation technique.en
dc.description.sponsorshipThis work has been developed within the international grant DAAD given by the German Academic Exchange Service. PilotManu (European Union, 7th Framework Programme NMP3-SE-2013-604344) funded by EU has supported as well the development. The authors acknowledge also funding by the Deutsche Forschungsgemeinschaft (DFG) of the Collaborative Research Center SFB/TR 103: “From Atoms to Turbine Blades – A Scientific Approach for Developing the Next Generation of Single Crystal Superalloys”.en
dc.description.statusPublicadoes
dc.format.extent7
dc.identifier.bibliographicCitationMaterials Science and Engineering: A, (2018), v. 734, pp.: 437-444.en
dc.identifier.doihttps://doi.org/10.1016/j.msea.2018.08.007
dc.identifier.issn0921-5093
dc.identifier.publicationfirstpage437
dc.identifier.publicationlastpage444
dc.identifier.publicationtitleMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSINGen
dc.identifier.publicationvolume734
dc.identifier.urihttps://hdl.handle.net/10016/34619
dc.identifier.uxxiAR/0000022252
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/NMP3-SE-2013-604344/PilotManuen
dc.rights© 2018 Elsevier B.V. All rights reserveden
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.otherCo-Al-W superalloysen
dc.subject.otherPM routeen
dc.subject.otherMechanical propertiesen
dc.subject.otherNanoindentationen
dc.subject.otherMechanical millingen
dc.titleMicrostructure and compression strength of Co-based superalloys hardened by γ' and carbide precipitationen
dc.title.alternativeMicrostructure and compression strength of Co-based superalloys hardened by [gamma prima] and carbide precipitationen
dc.title.alternativeFormation of a [gamma/gamma prima] microstructure in Co-based superalloys produced by a powder metallurgy routeen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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