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dc.contributor.authorMørtsell, Eva Anne
dc.contributor.authorQian, Feng
dc.contributor.authorMarioara, Calin Daniel
dc.contributor.authorLi, Yanjun
dc.date.accessioned2020-11-25T12:35:27Z
dc.date.available2020-11-25T12:35:27Z
dc.date.created2019-05-04T11:34:55Z
dc.date.issued2019
dc.identifier.citationJournal of Alloys and Compounds. 2019, 785 1106-1114.en_US
dc.identifier.issn0925-8388
dc.identifier.urihttps://hdl.handle.net/11250/2689570
dc.description.abstractThe influence of different Cu addition levels on the age hardening and precipitation behaviors in an Al356 foundry alloy during artificial aging treatment has been systematically studied. A detailed characterization of the precipitates at the atomic scale has been done by using high angle annular dark field (HAADF) scanning transmission electron microscopy (STEM). At peak hardness, the number density of needle shaped precipitates increases with increasing Cu content, while the dominant hardening precipitates change from β" in the Cu-free alloy to L and Q′ phases in the Cu-added alloys. It is discovered that the cross section of a large fraction of L-phase contains an inversion center, predominantly at the central Si atomic column in the lattice. It was also observed that some β" precipitates incorporate Cu atoms at the Si3-sites in the β"-molecule. In addition to the Mg-Si-(Cu) precipitates, a large fraction of nano-sized Si particles also precipitated in all the three alloys during artificial aging, which is attributed to the excess Si in solid solution.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.subjectPrecipitatesen_US
dc.subjectTEMen_US
dc.subjectCopperen_US
dc.subjectSiliconen_US
dc.subjectFoundry alloyen_US
dc.subjectAluminiumen_US
dc.titlePrecipitation in an A356 foundry alloy with Cu additions - A transmission electron microscopy studyen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holder© 2019. This is the authors’ accepted and refereed manuscript to the article. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.source.pagenumber1106-1114en_US
dc.source.volume785en_US
dc.source.journalJournal of Alloys and Compoundsen_US
dc.identifier.doi10.1016/j.jallcom.2019.01.229
dc.identifier.cristin1695581
dc.relation.projectNorges forskningsråd: 197405en_US
cristin.unitcode7401,80,64,0
cristin.unitnameMaterialer og nanoteknologi
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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