Microstructure and mechanical behavior of ODS and non-ODS Fe-14Cr model alloys produced by spark plasma sintering

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dc.contributor.author Auger, M. Angustias
dc.contributor.author Castro Bernal, María Vanessa de
dc.contributor.author Leguey Galán, Teresa
dc.contributor.author Muñoz Castellanos, Ángel
dc.contributor.author Pareja Pareja, Ramiro
dc.date.accessioned 2014-12-15T12:19:46Z
dc.date.available 2014-12-15T12:19:46Z
dc.date.issued 2013-05
dc.identifier.bibliographicCitation Journal of Nuclear Materials 436 (2013) 1-3, May, pp. 68–75
dc.identifier.issn 0022-3115
dc.identifier.uri http://hdl.handle.net/10016/19788
dc.description.abstract In this work the spark plasma sintering (SPS) technique has been explored as an alternative consolidation route for producing ultra-fine grained Fe–14Cr model alloys containing a dispersion of oxide nanoparti-cles. Elemental powders of Fe and Cr, and nanosized Y₂O₃ powder have been mechanically alloyed in a planetary ball mill and rapidly sintered in a spark plasma furnace. Two alloys, with nominal compositions Fe–14%Cr and Fe–14% Cr–0.3%Y₂O₃ (wt.%), have been fabricated and their microstructure and mechanical properties investigated. The results have been compared with those obtained for other powder metal-lurgy processed alloys of the same composition but consolidated by hot isostatic pressing. The SPS tech-nique under the present conditions has produced Fe–14Cr materials that apparently exhibit different microstructures yielding inferior mechanical properties than the counterpart material consolidated by hot isostatic pressing. Although the presence of a dispersion of Y-rich particles is evident, the oxide dis-persion strengthened (ODS) Fe–14Cr alloy consolidated by SPS exhibits poor tensile properties. The extensive decoration of the powder particle surfaces with Cr-rich precipitates and the residual porosity appear to be responsible for the impaired properties of this ODS alloy consolidated by SPS.
dc.description.sponsorship This investigation was supported by the Ministry of Science and Innovation of Spain (Project No. ENE 2008-06403-C06-04), the Comunidad de Madrid through the program ESTRUMAT-CM(Grant No. 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.
dc.format.extent 8
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2013 Elsevier B.V.
dc.subject.other Strengthened ferreitic steel
dc.title Microstructure and mechanical behavior of ODS and non-ODS Fe-14Cr model alloys produced by spark plasma sintering
dc.type article
dc.description.status Publicado
dc.relation.publisherversion http://dx.doi.org/10.1016/j.jnucmat.2013.01.331
dc.subject.eciencia Física
dc.subject.eciencia Materiales
dc.identifier.doi 10.1016/j.jnucmat.2013.01.331
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. ENE2008-06403-C06-04
dc.relation.projectID Comunidad de Madrid. S-0505/MAT/0077/ESTRUMAT
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 68
dc.identifier.publicationissue 1-3, May
dc.identifier.publicationlastpage 75
dc.identifier.publicationtitle Journal of Nuclear Materials
dc.identifier.publicationvolume 436
dc.identifier.uxxi AR/0000013306
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