液氮温度下纯<strong>Ti</strong>动态塑性变形中的孪晶变体选择

液氮温度下纯Ti动态塑性变形中的孪晶变体选择

高栋, 周宇, 于泽, 桑宝光

Selection of Twin Variants in Dynamic Plastic Deformation of Pure Ti at Liquid Nitrogen Temperature

GAO Dong, ZHOU Yu, YU Ze, SANG Baoguang

表1 DPD后纯Ti中常见的6种孪晶占比

Table 1 Frequencies of twinning boundaries in pure Ti after DPD

Type of twin	Misorientation angle and axis	Frequency of twin %
{ $10 \bar{1} 2$ }	85° < $1 \bar{2} 10$ >	7.87
{ $10 \bar{1} 1$ }	57.2° < $1 \bar{2} 10$ >	0.02
{ $11 \bar{2} 1$ }	35° < $10 \bar{1} 0$ >	0.15
{ $11 \bar{2} 2$ }	64.4° < $10 \bar{1} 0$ >	11.50
{ $11 \bar{2} 3$ }	86.8° < $1 \bar{2} 10$ >	0.50
{ $11 \bar{2} 4$ }	77° < $1 \bar{2} 10$ >	1.20
Total	-	21.24