dc.contributor.author | Qian, Feng | |
dc.contributor.author | Mørtsell, Eva Anne | |
dc.contributor.author | Marioara, Calin Daniel | |
dc.contributor.author | Andersen, Sigmund Jarle | |
dc.contributor.author | Li, Yanjun | |
dc.date.accessioned | 2020-12-23T13:56:54Z | |
dc.date.available | 2020-12-23T13:56:54Z | |
dc.date.created | 2018-09-06T23:47:18Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Materialia. 2018, 4 33-37. | en_US |
dc.identifier.issn | 2589-1529 | |
dc.identifier.uri | https://hdl.handle.net/11250/2720972 | |
dc.description.abstract | This study reports significant improvements in both the age hardening kinetics and peak hardness of an Al-Mg-Si alloy by microalloying with 0.06 at% Cd. A detailed high-angle annular dark-field scanning transmission electron microscopy study shows that most of the needle-shaped hardening precipitates β" (∼82%) formed in the Cd-containing alloy are attached to or around Cd-rich precipitates, indicating that the Cd-rich precipitates can act as effective nucleation sites for needle-shaped precipitates, and therefore substantially increase the number density and decrease the size of needle-shaped precipitates. It also shows that most of the β" precipitates in the Cd-containing alloy have a disordered structure, even at the peak-aged state. Additionally, Cu and/or Cd atoms are found to be incorporated into β" and some precipitates with Q'/C-like triangular sub-units are formed, which are very rare in Al-Mg-Si alloys with a trace Cu content of 0.01 wt%. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.subject | High-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) | en_US |
dc.subject | Al-Mg-Si alloys | en_US |
dc.subject | Cd addition | en_US |
dc.subject | Heterogeneous nucleation | en_US |
dc.subject | Precipitates | en_US |
dc.title | Improving ageing kinetics and precipitation hardening in an Al-Mg-Si alloy by minor Cd addition | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | © 2018. 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.pagenumber | 33-37 | en_US |
dc.source.volume | 4 | en_US |
dc.source.journal | Materialia | en_US |
dc.identifier.doi | 10.1016/j.mtla.2018.09.006 | |
dc.identifier.cristin | 1607473 | |
dc.relation.project | Norges forskningsråd: 197405 | en_US |
cristin.unitcode | 7401,80,64,0 | |
cristin.unitname | Materialer og nanoteknologi | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |