Microstructure and mechanical properties of hot rolled ODS copper

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.authorEddahbi, Mohamed Ou Lahcen
dc.contributor.authorDura, O. J.
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.descriptionProceeding of: 19th International Conference on Fusion Reactor Materials (ICFRM-19), La Jolla, California, 27 October- 1 November 2020en
dc.description.abstractDispersion strengthened copper alloys have been produced by following a powder metallurgy route that have consisted of milling copper and yttrium acetate powders in a planetary ball milling and subsequently sintering by hot isostatic pressing (HIP). In order to increase the degree of densification of the materials, they were subjected to a thermal treatment in vacuum and to a hot rolling process at 1173 K. The decomposition of the yttrium acetate during the thermal treatments resulted in the formation of voids, with a loss of densification that could not be satisfactorily improved with the hot rolling processing. The microstructure and the mechanical and thermal properties of the alloys were analyzed by scanning electron microscopy, electron backscattering diffraction, micro and nanohardness measurements, and compression tests and thermal conductivity measurements, both in the range 300–780 K. The best mechanical properties were obtained for the as-HIP material, with a mean grain size of 0.3 ± 0.3 μm and a yield strength value at room temperature of 520 MPa. In contrast, the material with the highest thermal conductivity for the entire range of temperature was found to be the alloy thermal treated in vacuum at 1273 K and later subjected to the hot rolling processing. The different microstructural characteristics of the alloys such as grain size, defects present in the grains and size of voids seems to be responsible of the differences on their thermal conductivity values.en
dc.description.sponsorshipThe present work has been supported by the Ministerio de Economía y Competitividad of Spain (ENE2015-70300-C3-2-R MINECO/FEDER) and by the Regional Government of Madrid through the program TECHNOFUSIÓN(III)CM (S2018/EMT-4437).en
dc.identifier.bibliographicCitationMuñoz, A., et al. (2020). Microstructure and mechanical properties of hot rolled ODS copper. In Nuclear Materials and Energy, (Special Issue : Selected papers from the 19th International Conference on Fusion Reactor Materials), Vol. 24, Pp. 100754.en
dc.identifier.publicationtitleNuclear Materials and Energy (Nuclear Materials and Energy)en
dc.publisherElsevier BV.en
dc.relation.eventplaceLa Jolla, California
dc.relation.eventtitleInternational Conference on Fusion Reactor Materials (ICFRM-19)en
dc.relation.projectIDGobierno de España. ENE2015-70300-C3-2-R MINECO/FEDERes
dc.relation.projectIDComunidad de Madrid. S2018/EMT-4437es
dc.rights© 2020 The Authors. Published by Elsevier Ltd.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen accessen
dc.subject.otherDispersion Strengthened Copperen
dc.subject.otherHot Rollingen
dc.subject.otherPowder Metallurgy Routeen
dc.subject.otherThermal Conductivity Of Ods Copperen
dc.titleMicrostructure and mechanical properties of hot rolled ODS copperen
dc.typeconference paper*
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