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dc.contributor.authorGovindaraj, Nagaraj Vinayagam
dc.contributor.authorBjørge, Ruben
dc.contributor.authorHolmedal, Bjørn
dc.date.accessioned2017-09-28T07:27:20Z
dc.date.available2017-09-28T07:27:20Z
dc.date.created2014-06-15T23:10:19Z
dc.date.issued2013
dc.identifier.citationMetallurgical and Materials Transactions. A. 2014, 45 (3), 1597-1608.nb_NO
dc.identifier.issn1073-5623
dc.identifier.urihttp://hdl.handle.net/11250/2457190
dc.description.abstractAA3103 aluminum strips were cold rolled to various von Mises strains up to 4.7. In addition, two severely deformed conditions were obtained by one and four cycles of cold accumulated roll bonding subsequent to cold rolling to a strain of 4.2. For cases of subsequent annealing at 498 K (225 °C) for 10 minutes, an increase in the ultimate tensile strength was observed at the rolling strains of 1.7 and higher. Similar hardening is observed for a wide range of temperature–time combinations for temperatures greater than 423 K (150 °C). The yield stress is also increased by a few per cent during further cold rolling. The magnitude of the increase in strength on annealing increased with the increasing strain. Electron backscattered diffraction and transmission electron microscopy studies showed no significant changes in the high- or low-angle grain boundary spacings by this annealing. A systematic investigation on the roles played by Si and Mn was made with different homogenization treatments of AA3103 and of an AlSi alloy. Based on tensile tests, and differential scanning calorimetry and electrical conductivity measurements, it is concluded that Mn plays a major role. The exact mechanisms causing hardening on annealing are not identified, but through elimination of other explanations, it is suggested that some sort of clustering or precipitation mechanism is involved.nb_NO
dc.language.isoengnb_NO
dc.publisherSpringer Verlagnb_NO
dc.titleCharacterizing hardening on annealing of cold-rolled aluminum AA3103 stripsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber1597-1608nb_NO
dc.source.volume45nb_NO
dc.source.journalMetallurgical and Materials Transactions. Anb_NO
dc.source.issue3nb_NO
dc.identifier.doi10.1007/s11661-013-2064-5
dc.identifier.cristin1138157
dc.relation.projectNorges forskningsråd: 192450nb_NO
dc.description.localcode© Springer-Verlag 2013. This is the authors' accepted and refereed manuscript to the article.nb_NO
cristin.unitcode194,66,35,0
cristin.unitcode194,66,20,0
cristin.unitnameInstitutt for materialteknologi
cristin.unitnameInstitutt for fysikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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