A Study of Twin Variant Selection and Twin Growth in Titanium

2011 ◽  
Vol 13 (10) ◽  
pp. 928-932 ◽  
Author(s):  
Lei Bao ◽  
Christophe Schuman ◽  
Jean-Sébastien Lecomte ◽  
Marie-Jeanne Philippe ◽  
Xiang Zhao ◽  
...  
Keyword(s):  
Variant Selection ◽  
Twin Variant ◽  
Twin Growth

Loading Mode Dependence of {$$10\bar{1}2$$} Twin Variant Selection in a Rolled Mg-Al-Zn Alloy

2021 ◽  
Author(s):  
Longhui Mao ◽  
Chuming Liu ◽  
Yingchun Wan ◽  
Tao Chen ◽  
Shunong Jiang ◽  
...  
Keyword(s):  
Variant Selection ◽  
Twin Variant ◽  
Loading Mode ◽  
Zn Alloy

Secondary twin variant selection in four types of double twins in titanium

2018 ◽  
Vol 152 ◽  
pp. 58-76 ◽  
Author(s):  
Shun Xu ◽  
Mingyu Gong ◽  
Yanyao Jiang ◽  
Christophe Schuman ◽  
Jean-Sébastien Lecomte ◽  
...  
Keyword(s):  
Variant Selection ◽  
Twin Variant

Multiple twinning in pure hexagonal close-packed titanium

2013 ◽  
Vol 46 (5) ◽  
pp. 1397-1406 ◽  
Author(s):  
Lei Bao ◽  
Yudong Zhang ◽  
Christophe Schuman ◽  
Jean-Sébastien Lecomte ◽  
Marie-Jeanne Philippe ◽  
...  
Keyword(s):  
Pure Titanium ◽  
Variant Selection ◽  
Hexagonal Close Packed ◽  
Twin Variant ◽  
Commercial Pure Titanium ◽  
The Matrix ◽  
Schmid Factor ◽  
Sample Technique ◽  
Multiple Twinning ◽  
Selection Of

Commercial pure titanium (T40) was deformed in channel die compression by means of the split-sample technique in order to study multiple twinning. Particular attention was paid to the twin variant presentation and selection during multiple twinning. All possible misorientations, corresponding to the multiple twins arising from the combination of the {1 1 {\overline 2} 2} compression (C) twin, the {1 0 {\overline 1} 2} tension twin (T1) and the {1 1 {\overline 2} 1} tension twin (T2), were calculated with respect to the crystal basis of the matrix grain. All the multiple twin variants are partitioned into ten classes with the same crystallographically equivalent misorientation angle and axis. However, when the influence of twinning order is taken into account, the multiple twin variants are partitioned into 15 classes. Experimental results prove that the selection of twin variants (primary and secondary) is mainly governed by their macroscopic Schmid factor (SF). The normalized SF is more efficient at predicting variant selection. A twin formed in one grain can activate another twin in a neighbouring grain, provided that the angle between the two twinning planes does not exceed 20°.

Probability based ranking approach for twin variant selection in an α-Zr alloy

2019 ◽  
Vol 122 ◽  
pp. 164-187 ◽  
Author(s):  
G. Bharat Reddy ◽  
Rajeev Kapoor ◽  
Apu Sarkar
Keyword(s):  
Variant Selection ◽  
Twin Variant ◽  
Zr Alloy

scholarly journals Basal slip mediated tension twin variant selection in magnesium WE43 alloy

2019 ◽  
Vol 170 ◽  
pp. 1-14 ◽  
Author(s):  
Dikai Guan ◽  
Bradley Wynne ◽  
Junheng Gao ◽  
Yuhe Huang ◽  
W. Mark Rainforth
Keyword(s):  
Basal Slip ◽  
Variant Selection ◽  
Twin Variant ◽  
We43 Alloy

New Model for Twin-Variant Selection in Hexagonal Alloys

2011 ◽  
Vol 702-703 ◽  
pp. 229-232
Author(s):  
Christophe Schuman ◽  
L. Bao ◽  
J.S. Lecomte ◽  
M.J. Philippe ◽  
Y. Zhang ◽  
...  
Keyword(s):  
Grain Size ◽  
Selection Criterion ◽  
Deformation Energy ◽  
Experimental Results ◽  
Good Prediction ◽  
Variant Selection ◽  
New Model ◽  
Twin Variant ◽  
Type Relation

A new selection criterion to explain the activation of the twinning variant is proposed. This criterion is 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 (ASTM grade 2) deformed by Channel Die compression.

scholarly journals Extension twin variant selection during uniaxial compression of a magnesium alloy

2012 ◽  
Vol 550 ◽  
pp. 138-145 ◽  
Author(s):  
Y. Pei ◽  
A. Godfrey ◽  
J. Jiang ◽  
Y.B. Zhang ◽  
W. Liu ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Uniaxial Compression ◽  
Variant Selection ◽  
Twin Variant
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