期刊
SCRIPTA MATERIALIA
卷 206, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2021.114231
关键词
Magnesium; Twinning; Interface migration; Plastic deformation; TEM
类别
资金
- National Nat-ural Science Foundation of China [52031011, 51971168, 52022076]
Deformation twinning in magnesium can undergo cross-transition, involving prismatic-basal interface migration, to broaden the understanding of twinning mechanisms.
Deformation twinning operates via twinning dislocations gliding on a specific twinning plane and along a specific twinning direction. As a consequence, a twin variant is supposed to retain its identity and unable to transform into other variants. However, we demonstrated that for the {10 (1) over bar2} deformation twinning in magnesium, one twin variant can transform towards its conjugated variant in response to the external applied loading via the participation of prismatic-basal interface migration. We term such transformation as cross-transition of deformation twinning, which is expected to broaden the understanding of twinning mechanism. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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