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dc.contributor.authorWenner, Sigurd
dc.contributor.authorMarioara, Calin Daniel
dc.contributor.authorAndersen, Sigmund Jarle
dc.contributor.authorHolmestad, Randi
dc.date.accessioned2018-02-06T09:56:40Z
dc.date.available2018-02-06T09:56:40Z
dc.date.created2012-11-19T15:08:42Z
dc.date.issued2012
dc.identifier.citationInternational Journal of Materials Research - Zeitschrift für Metallkunde. 2012, 103 (8), 948-954.nb_NO
dc.identifier.issn1862-5282
dc.identifier.urihttp://hdl.handle.net/11250/2482880
dc.description.abstractThe effect of natural ageing time before artificial ageing has been investigated in four Al – Mg – Si(– Cu) alloys, with 0.4 % Mg + 0.8 % Si and 0.8 % Mg + 0.4 % Si, both with and without 0.14 at.% Cu. The precipitate microstructure was quantified by means of transmission electron microscopy. Varying the storage time before ageing for 170 min at 200 °C, we observe an initial hardness increase after minutes, a decrease after several hours and another increase after weeks. The hardness decrease was most pronounced in the Mg-rich Cu-free alloy, caused by a reduced precipitate volume fraction. Adding Cu produces finer „microstructures, higher hardness and reduces the negative effect of natural ageing regardless of the Mg/Si ratio of the alloy. With 1 week storage, an increase in the fraction of the Cu-containing precipitates L and Q was observed in the Cu-containing Si-rich and Mg-rich alloys respectively.nb_NO
dc.language.isoengnb_NO
dc.publisherCarl Hanser Verlagnb_NO
dc.titleEffect of room temperature storage time on precipitation in Al-Mg-Si(-Cu) alloys with different Mg/Si ratiosnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber948-954nb_NO
dc.source.volume103nb_NO
dc.source.journalInternational Journal of Materials Research - Zeitschrift für Metallkundenb_NO
dc.source.issue8nb_NO
dc.identifier.doi10.3139/146.110795
dc.identifier.cristin963298
dc.relation.projectNorges forskningsråd: 193619nb_NO
dc.relation.projectNORTEM: 197405nb_NO
dc.description.localcodeThis article will not be available due to copyright restrictions (c) 2012 by Carl Hanser Verlagnb_NO
cristin.unitcode194,66,20,0
cristin.unitnameInstitutt for fysikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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