dc.contributor.author | Zhou, Bijin | |
dc.contributor.author | Wang, Leyun | |
dc.contributor.author | Jia, Hailong | |
dc.contributor.author | Zeng, Xiaoqin | |
dc.contributor.author | Li, Yanjun | |
dc.date.accessioned | 2022-03-11T07:25:39Z | |
dc.date.available | 2022-03-11T07:25:39Z | |
dc.date.created | 2021-11-10T22:02:36Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 1005-0302 | |
dc.identifier.uri | https://hdl.handle.net/11250/2984414 | |
dc.description.abstract | In this study, the dislocation behavior of a polycrystalline Mg-5Y alloy during tensile deformation was quantitatively studied by an in-situ tensile test, visco-plastic self-consistent (VPSC) modeling, and transmission electron microscopy (TEM). The results of the in-situ tensile test show that <a> dislocations contribute to most of the deformation, while a small fraction of <c + a> dislocations are also activated near grain boundaries (GBs). The critical resolved shear stresses (CRSSs) of different dislocation slip systems were estimated. The CRSS ratio between prismatic and basal <a> dislocation slip in the Mg-Y alloy (~13) is lower than that of pure Mg (~80), which is considered as a major reason for the high ductility of the alloy. TEM study shows that the <c + a> dislocations in the alloy have high mobility, which also helps to accommodate the deformation near GBs. | 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.title | Dislocation behavior in a polycrystalline Mg-Y alloy using multi-scale characterization and VPSC simulation | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | This is the authors' accepted manuscript to an article published by Elsevier. Locked until 28.6.2023 due to copyright restrictions. | en_US |
dc.source.volume | 98 | en_US |
dc.source.journal | Journal of Materials Science & Technology | en_US |
dc.identifier.doi | 10.1016/j.jmst.2021.03.087 | |
dc.identifier.cristin | 1953436 | |
dc.relation.project | Norges forskningsråd: 309584 | en_US |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |