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Thermal stability of the grain structure in the W-2V and W-2V-0.5Y₂O₃ alloys produced by hot isostatic pressing.

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dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Materiales Nano-Estructurados y Multifuncionaleses
dc.contributor.authorMuñoz Castellanos, Ángel
dc.contributor.authorSavoini Cardiel, Begoña
dc.contributor.authorMonge Alcázar, Miguel Ángel
dc.contributor.authorMartínez Gómez, Javier
dc.contributor.authorArmstrong, D.E.J.
dc.contributor.authorPareja Pareja, Ramiro
dc.date.accessioned2014-11-20T13:20:20Z
dc.date.available2014-11-20T13:20:20Z
dc.date.issued2012-09
dc.descriptionProceeding of: 27th Simposium on Fusion Technology (SOFT), took place 2012-09-24, in Liège (Bélgica).en
dc.description.abstractW-2V and ODS W-2V-0.5Y₂O₃ alloys have been produced following a powder metallurgy route consisting of mechanical alloying and a subsequent high isostatic pressing HIP at 1573 K. The grain microstructure and microhardness recovery of the alloys have been studied in samples subjected to isothermal treatments in vacuum in temperature range 1073–1973 K. Both alloys exhibit a duplex grain size distribution consisting of a submicron-sized grain and a coarse-grained population. It has been found that the Y₂O₃ addition inhibits growth of the coarse grains at T < 1973 K. Submicron grain growth, with activa-tion enthalpy of 1.9 and 2.49 eV for W-2V and W-2V-0.5Y₂O₃, respectively, was observed at T ≥ 1573 K. It resulted that the rate constant for grain growth is 30 times higher in W-2V-0.5Y₂O₃ than in W-2V. The considerable enhancement of the microhardness in the W-2V-0.5Y₂O₃ appears to be associated to dispersion strengthening.en
dc.description.sponsorshipThis work has been funded by the Ministry ofcience and Innovation of Spain (MICINN) under contract ENE2012-39787-C06-05, Regional Government of Madrid throught he ESTRUMAT-CM program (MAT-1585)en
dc.description.statusPublicado
dc.format.extent5
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationFusion Engineering and Design 88 (2013) 2636–2640en
dc.identifier.doi10.1016/j.fusengdes.2013.05.057
dc.identifier.issn0920-3796
dc.identifier.publicationfirstpage2636
dc.identifier.publicationissue9-10
dc.identifier.publicationlastpage2640
dc.identifier.publicationtitleFusion Engineering and Designen
dc.identifier.publicationvolume88
dc.identifier.urihttps://hdl.handle.net/10016/19710
dc.identifier.uxxiCC/0000019048
dc.language.isoeng
dc.relation.eventdateSeptember 24, 2012es
dc.relation.eventnumber27
dc.relation.eventplaceLiège, Belgiumen
dc.relation.eventtitleSimposium on Fusion Technology (SOFT)es
dc.relation.projectIDComunidad de Madrid. S2009/MAT-1585/ESTRUMAT
dc.relation.projectIDGobierno de España. ENE2012-39787-C06-05
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.fusengdes.2013.05.057
dc.rights© 2013. Elsevier
dc.rights.accessRightsopen access
dc.subject.ecienciaFísicaes
dc.subject.ecienciaMaterialesen
dc.subject.otherW alloyses
dc.subject.otherGrain growthen
dc.subject.otherRecoveryen
dc.subject.otherMicrohardnessen
dc.subject.otherOxide dispersion strengthened W alloysen
dc.titleThermal stability of the grain structure in the W-2V and W-2V-0.5Y₂O₃ alloys produced by hot isostatic pressing.en
dc.typeconference paper*
dc.type.hasVersionAM*
dspace.entity.typePublication
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