Accommodative {10(1)over-tilde2} twins at high angle grain boundaries in rolled pure titanium

被引：52
作者：
Xu, Shun
Schuman, Christophe [1 ]
Lecomte, Jean-Sebastien
机构：
[1] Univ Lorraine, Lab Etud Microstruct & Mecan Mat LEM3, CNRS UMR 7239, F-57045 Metz, France
来源：
SCRIPTA MATERIALIA | 2016年 / 116卷
关键词：
Titanium; Grain boundary; Twinning; Accommodation; VARIANT SELECTION CRITERION; MAGNESIUM ALLOY; EXTENSION TWINS; MG ALLOY; DEFORMATION; NUCLEATION; MG-3AL-1ZN; BEHAVIORS; MECHANISM; SHEET;
D O I：
10.1016/j.scriptamat.2016.02.005
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The intersection of two {10 (1) over bar2} 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 {11 (2) over bar2} contraction twins accommodated by adjacent {1012} extension twins were found at high angle grain boundaries with misorientation angles close to 90 degrees. The mechanism accounting for the variant selection of the adjoined {10 (1) over bar2} twins is examined in terms of Schmid factor and accommodation capacity of potential twin variants. (C) 2016 Elsevier Ltd. All rights reserved.
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收藏
页码：152 / 156
页数：5
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