Twinning induced plasticity in commercially pure titanium at low temperature

被引：0
|
作者：
Sun, QY [1 ]
Song, XP [1 ]
Gu, HC [1 ]
机构：
[1] Xian Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2001年 / 11卷 / 01期
关键词：
titanium; mechanical properties; twinning;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Using Instron 1342 at a displacement rate of 0.5 mm/min, tensile tests were conducted in hot-rolled and annealed commercial pure titanium at room temperature and 77K, respectively. Fracture surfaces and microstructures after tests were investigated by SEM and TEM respectively. The results show that both the strength and the ductility of titanium at 77K are higher than those at room temperature. The main deformation mode of pure titanium changes from slipping at room temperature to twinning at 77K. Twinning induced plasticity is put forward to interpret the abnormal high ductility of titanium at low temperature of 77K.
引用
收藏
页码：132 / 134
页数：3
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