dc.contributor.author | Ringdalen, Inga Gudem | |
dc.contributor.author | Wenner, Sigurd | |
dc.contributor.author | Friis, Jesper | |
dc.contributor.author | Marian, Jaime | |
dc.date.accessioned | 2017-12-02T11:06:01Z | |
dc.date.available | 2017-12-02T11:06:01Z | |
dc.date.created | 2017-12-01T09:41:11Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | MRS Communications. 2017, 7 (3), 626-633. | nb_NO |
dc.identifier.issn | 2159-6859 | |
dc.identifier.uri | http://hdl.handle.net/11250/2468833 | |
dc.description.abstract | Partial aging of AA6060 aluminum alloys is known to result in a microstructure characterized by needle-shaped Si/Mg-rich precipitates. These precipitates belong to the non-equilibrium β″ phase and are coherent with the face-centered cubic Al lattice, despite of which they can cause considerable hardening. We have investigated the interaction between these β″ precipitates and dislocations using a unique combination of modeling and experimental observations. Dislocation-precipitate interactions are simulated using dislocation dynamics (DD) parameterized with atomistic simulations. The elastic fields due to the precipitates are described by a decay law fitted to high-resolution transmission electron microscopy measurements. These fields are subsequently used in DD to study the strength of individual precipitates as a function of size and dislocation character. Our results can be used to parameterize crystal plasticity models to calculate the strength of AA6060 at the macroscopic level. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Cambridge University Press (CUP) | nb_NO |
dc.title | Dislocation dynamics study of precipitate hardening in Al-Mg-Si alloys with input from experimental characterization | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 626-633 | nb_NO |
dc.source.volume | 7 | nb_NO |
dc.source.journal | MRS Communications | nb_NO |
dc.source.issue | 3 | nb_NO |
dc.identifier.doi | 10.1557/mrc.2017.78 | |
dc.identifier.cristin | 1521420 | |
dc.description.localcode | LOCKED until 4.3.2018 due to copyright restrictions. This article has been published in a revised form in [MRS Communications] [http://doi.org/10.1557/mrc.2017.78]. This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works. © Cambridge University Press (CUP) | nb_NO |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |