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A New Variant Selection Criterion for Twin Variants in Titanium Alloys (Part 1)
Author(s) -
Schuman Christophe,
Bao Lei,
Sébastien Lecomte Jean,
Zhang Yudong,
Marc Raulot Jean,
Jeanne Philippe Marie,
Esling Claude
Publication year - 2011
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201100119
Subject(s) - crystal twinning , selection (genetic algorithm) , deformation (meteorology) , compression (physics) , titanium , materials science , energy (signal processing) , mathematics , computer science , metallurgy , statistics , composite material , artificial intelligence , microstructure
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 to obtain a very good prediction for the variant selection. The calculations are compared with the experimental results obtained on T40 deformed by Channel Die compression.