MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Energetic Analysis of Deformation Twins and Twinning Dislocations in Magnesium
Daisuke MatsunakaAkira KanohYoji Shibutani
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2013 Volume 54 Issue 8 Pages 1524-1527

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Abstract

Twin boundaries and twinning dislocations for (10\bar{1}2) and (10\bar{1}1) twins in Mg are investigated, using the generalized-embedded-atom-method interatomic potential. The twin boundary energy for the (10\bar{1}2) twin is found to be larger than that for the (10\bar{1}1) twin. On the other hand, both the dislocation energy and the Peierls barrier of the twinning dislocation are low for the (10\bar{1}2) twin. This implies that the (10\bar{1}2) twin is capable of having a winding morphology and can grow easily.

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© 2013 The Japan Institute of Metals and Materials
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