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Microstructure and tensile properties of oxide dispersion strengthened Fe–14Cr– 0.3Y₂O₃ and Fe–14Cr–2W–0.3Ti–0.3Y₂O₃

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dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Materiales Nano-Estructurados y Multifuncionaleses
dc.contributor.authorAuger, María A.
dc.contributor.authorCastro Bernal, María Vanessa de
dc.contributor.authorLeguey Galán, Teresa
dc.contributor.authorMonge Alcazar, Miguel Ángel
dc.contributor.authorMuñoz Castellanos, Ángel
dc.contributor.authorPareja Pareja, Ramiro
dc.date.accessioned2014-11-24T09:24:52Z
dc.date.available2014-11-24T09:24:52Z
dc.date.issued2011-10
dc.descriptionProocedings of: 15th International Conference on Fusion Reactor Materials (ICFRM15). Charleston, South Carolina (United States of America), 16-22 october, 2011en
dc.description.abstractTwo ODS ferritic steels with nominal compositions (wt.%): Fe–14Cr–0.3Y2O3 and Fe–14Cr–2W–0.3Ti–0.3Y2O3 have been produced by mechanical alloying and consolidation by hot isostatic pressing. The microstructure and tensile properties of these materials after being forged and heat treated at 1123 K have been investigated to clarify the interrelation between composition, microstructure and mechanical properties. The second phase precipitates in these alloys have been analyzed by high angle annular dark field imaging in scanning TEM mode and electron diffraction. Fe–14Cr–2W–0.3Ti–0.3Y2O3 exhibits a duplex microstructure consisting of large recrystallized grains, as large as 1.5 μm, and unrecovered regions containing submicron equiaxed grains. In addition, three types of secondary phase particles have been found: large M₂₃C₆ particles containing W and Cr, (Cr + Ti) rich spherical particles with diameters between 50 and 500 nm, and fine (Y + Ti) oxide particles with sizes below 30 nm. In contrast, Fe14CrY shows a uniform structure of equiaxed grains, with sizes in the range 0.5 3 μm, containing a fine disper sion of Y oxide particles (<30 nm) homogeneously distributed inside the grains, as well as large carbide and oxide particles. Tensile tests performed over the temperature range 273 973 K have revealed that the alloy containing W and Ti has lower yield and tensile strengths than Fe–14Cr–0.3Y2O3 at tempera tures up to 773 K, but the opposite appears to occur beyond this temperature.en
dc.description.sponsorshipThis investigation was supported by the Spanish Ministry of Science and Innovation (Project No. ENE 2008 06403 C06 04 and Juan de la Cierva program), the Comunidad de Madrid through the program ESTRUMAT CM (Grant S0505/MAT/0077), and the European Commission through the European Fusion Development Agreement (Contract No. 09 240), the IP3 FP6 ESTEEM project (Contract No. 026019) and the Fusion Energy Materials Science (FEMaS) FP7 coordination action.es
dc.description.statusPublicado
dc.format.extent6
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationJournal of Nuclear Materials 442 (2013) 1–3, S-1, S142–S147en
dc.identifier.doi10.1016/j.jnucmat.2012.11.001
dc.identifier.issn0022-3115
dc.identifier.publicationfirstpage142
dc.identifier.publicationissueIssues 1–3, Supplement 1en
dc.identifier.publicationlastpage147
dc.identifier.publicationtitleJournal of Nuclear Materialsen
dc.identifier.publicationvolume442
dc.identifier.urihttps://hdl.handle.net/10016/19719
dc.identifier.uxxiCC/0000017697
dc.language.isoeng
dc.publisherElsevieren
dc.relation.eventdate16-22 October 2011
dc.relation.eventnumber15
dc.relation.eventplaceCharleston, South Carolina (United States of America)en
dc.relation.eventtitleInternational Conference on Fusion Reactor Materials (ICFRM15)en
dc.relation.projectIDComunidad de Madrid. S-0505/MAT/0077/ESTRUMATes
dc.relation.projectIDGobierno de España. ENE2008-06403-C06-04
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.jnucmat.2012.11.001
dc.rights© 2013. Elsevier
dc.rights.accessRightsopen access
dc.subject.ecienciaFísicaes
dc.subject.ecienciaMaterialeses
dc.titleMicrostructure and tensile properties of oxide dispersion strengthened Fe–14Cr– 0.3Y₂O₃ and Fe–14Cr–2W–0.3Ti–0.3Y₂O₃en
dc.typeconference paper*
dc.type.hasVersionAM*
dspace.entity.typePublication
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