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Processing, microstructure and mechanical characterization of dispersion strengthened Cu-1%Y

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dc.affiliation.dptoUC3M. Departamento de Físicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Materiales Nano-Estructurados y Multifuncionaleses
dc.contributor.authorCarro Sevillano, Gabriel
dc.contributor.authorMuñoz Castellanos, Ángel
dc.contributor.authorSavoini Cardiel, Begoña
dc.contributor.authorMonge Alcázar, Miguel Ángel
dc.contributor.authorPareja Pareja, Ramiro
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.contributor.funderComunidad de Madrides
dc.date.accessioned2021-05-26T08:11:29Z
dc.date.available2021-05-26T08:11:29Z
dc.date.issued2019-01
dc.description.abstractDispersion strengthened Cu-1%Y (wt%) has been produced by mechanical alloying and subsequent consolidation by hot isostatic pressing (HIP). Samples of this alloy have been submitted to an equal channel angular pressing (ECAP) process and the effects on the microstructure and mechanical properties analyzed. The characteristics of the microstructure, such as the size distributions of both, the grains and Y-rich particles dispersed in the Cu matrix, have been studied by high resolution electron scanning microscopy and electron backscatter diffraction. The as-HIP alloy exhibits a quasi-bimodal distribution with an average diameter of 17 ± 14 μm. The ECAP treatment refines the average grain size to 1.3 ± 0.9 μm besides changing the size distribution of the Y-rich particles, which shifted from average size from 94 ± 9 nm to 55 ± 8 nm after ECAP. The mechanical characteristics have been investigated by means of microhardness measurements, and stress-strain tests in the temperature range 293 ― 573 K. The ECAP deformation resulted in an increase of the mechanical strength and a decrease in ductility. It is found that the Voce law can satisfactorily describe the plastic and hardening rate behavior of these alloys. The strain hardening rate plots as a function of flow stress for the samples tested at 293 ≤ T ≤ 773 K exhibited a two-stage behavior, comprising a transient stage at low stresses followed by the characteristic linear dependence for the stage III of hardening in f.c.c. metals.en
dc.format.extent11
dc.identifier.bibliographicCitationCarro, G., Muñoz, A., Savoini, B., Monge, M. & Pareja, R. (2019). Processing, microstructure and mechanical characterization of dispersion strengthened Cu-1%Y. Fusion Engineering and Design, vol. 138, pp. 321–331.en
dc.identifier.doihttps://doi.org/10.1016/j.fusengdes.2018.11.058
dc.identifier.issn0920-3796
dc.identifier.publicationfirstpage321
dc.identifier.publicationlastpage331
dc.identifier.publicationtitleFusion Engineering and Designen
dc.identifier.publicationvolume138
dc.identifier.urihttps://hdl.handle.net/10016/32754
dc.identifier.uxxiAR/0000023177
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDComunidad de Madrid. S2013/MIT-2862es
dc.relation.projectIDComunidad de Madrid. S2013/MAE-2745es
dc.relation.projectIDGobierno de España. ENE2015-70300-C3-2-Res
dc.rights© 2018 Elsevier B.V.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaFísicaes
dc.subject.otherDispersion strengthened copperen
dc.subject.otherEqual channel angular pressingen
dc.subject.otherStrain hardening rateen
dc.subject.otherVoce modelen
dc.titleProcessing, microstructure and mechanical characterization of dispersion strengthened Cu-1%Yen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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