Journal
ACTA MATERIALIA
Volume 60, Issue 9, Pages 3912-3919Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.actamat.2012.03.046
Keywords
Titanium (Ti); Plastic deformation mechanism; Twinning; Twin variant selection; Schmid factor
Funding
- Federation of Research for Aeronautic and Space (Federation de Recherche pour l'Aeronautique et l'Espace Theme Materiaux pour l'Aeronautique et l'Espace)
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A new selection criterion to explain the activation of the twinning variant is proposed based on the calculation of the deformation energy to create a primary twin. The calculation takes into account the effect of the grain size using a Hall-Petch-type relation. This criterion allows very good prediction for the variant selection to be obtained. The calculations are compared with the experimental results obtained on T40 deformed by rolling. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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