Accommodative twins at high angle grain boundaries in rolled pure titanium
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- 作者：Shun Xu shunxufamily@126.com" class="auth_mail" title="E-mail the corresponding author ; Christophe Schuman ; christophe.schuman@univ-lorraine.fr" class="auth_mail" title="E-mail the corresponding author ; Jean-Sé ; bastien Lecomte
- 关键词：Titanium ; Grain boundary ; Twinning ; Accommodation
- 刊名：Scripta Materialia
- 出版年：2016
- 出版时间：15 April 2016
- 年：2016
- 卷：116
- 期：Complete
- 页码：152-156
- 全文大小：1479 K
文摘
The intersection of two 
twins has been extensively reported in hexagonal metals and appears at grain boundaries with low misorientation angles. In the current work, compression was applied along the normal direction of rolled pure titanium. Primary contraction twins accommodated by adjacent extension twins were found at high angle grain boundaries with misorientation angles close to 90°. The mechanism accounting for the variant selection of the adjoined twins is examined in terms of Schmid factor and accommodation capacity of potential twin variants.
twins has been extensively reported in hexagonal metals and appears at grain boundaries with low misorientation angles. In the current work, compression was applied along the normal direction of rolled pure titanium. Primary contraction twins accommodated by adjacent extension twins were found at high angle grain boundaries with misorientation angles close to 90°. The mechanism accounting for the variant selection of the adjoined twins is examined in terms of Schmid factor and accommodation capacity of potential twin variants.