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Effects of substituting ytterbium for scandium on the microstructure and age-hardening behaviour of Al-Sc alloy

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dc.contributor.authorTuan, N. Q.
dc.contributor.authorPinto, A. M. P.
dc.contributor.authorPuga, H.
dc.contributor.authorRocha, L. A. [UNESP]
dc.contributor.authorBarbosa, J.
dc.contributor.institutionUniv Minho
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:08:54Z
dc.date.available2014-12-03T13:08:54Z
dc.date.issued2014-04-17
dc.description.abstractIn order to reduce the cost of Al-Sc alloys and maintain their mechanical properties, the microstructure and mechanical properties of Al-0.24 wt% Sc-0.07 wt% Yb in comparison with Al-0.28 wt% Sc alloys were studied. The aging behaviour, precipitate morphologies, precipitate coarsening and precipitation hardening of both alloys were investigated. The average diameter and the size distribution of nanoscale Al3Sc and Al-3(Sc,Yb) precipitates at various aging conditions were measured. Transmission electron microscopy (TEM) and high-resolution TEM were used to deeply understand the precipitate evolution. A maximum hardness around 73 (HV30) was obtained with a precipitate diameter from 4.3 to 5.6 nm for both alloys. (c) 2014 Elsevier B.V. All rights reserved.en
dc.description.affiliationUniv Minho, Ctr Mech & Mat Technol CT2M, P-4800058 Azurem, Guimaraes, Portugal
dc.description.affiliationUniv Estadual Paulista, UNESP, Fac Ciencias Bauru, BR-17033360 Sao Paulo, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, UNESP, Fac Ciencias Bauru, BR-17033360 Sao Paulo, SP, Brazil
dc.description.sponsorshipProject Bridging The Gap
dc.description.sponsorshipErasmus Mundus External Cooperation Window Program
dc.format.extent70-77
dc.identifierhttp://dx.doi.org/10.1016/j.msea.2014.02.042
dc.identifier.citationMaterials Science And Engineering A-structural Materials Properties Microstructure And Processing. Lausanne: Elsevier Science Sa, v. 601, p. 70-77, 2014.
dc.identifier.doi10.1016/j.msea.2014.02.042
dc.identifier.issn0921-5093
dc.identifier.urihttp://hdl.handle.net/11449/111705
dc.identifier.wosWOS:000334132000009
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofMaterials Science and Engineering A: Structural Materials Properties Microstructure and Processing
dc.relation.ispartofjcr3.414
dc.relation.ispartofsjr1,694
dc.rights.accessRightsAcesso restritopt
dc.sourceWeb of Science
dc.subjectAluminium-scandium alloysen
dc.subjectYtterbiumen
dc.subjectAge-hardeningen
dc.subjectPrecipitate coarseningen
dc.subjectTEMen
dc.subjectHigh-resolution TEMen
dc.titleEffects of substituting ytterbium for scandium on the microstructure and age-hardening behaviour of Al-Sc alloyen
dc.typeArtigopt
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.author.orcid0000-0002-7219-1518[4]
unesp.author.orcid0000-0002-7828-2912[5]
unesp.author.orcid0000-0002-1121-6793[3]
unesp.author.orcid0000-0002-1155-9972[2]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt

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