| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5435983 | Acta Materialia | 2017 | 7 Pages |
Abstract
Specifically oriented Mg single crystals, aligned for c-axis extension, were deformed in channel-die plane strain compression in order to form {101¯2} extension twins. The amount of twinning shear for {101¯2} twins was determined directly from the deflection of marker lines to be s=0.126, in excellent agreement with the theoretical value. The twinning shear was discussed with respect to the shear-coupled grain boundary migration by analyzing the formal dislocation content of {101¯2} twin boundaries. The respective boundary migration - shear coupling factor is proposed to result from a combination of two elementary coupling modes, ã101¯0ã and [0001].
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Konstantin D. Molodov, Talal Al-Samman, Dmitri A. Molodov, Sandra Korte-Kerzel,