冷轧 Q 值对TA18管材塑性变形织构演变的影响

张伟, 张兵, 周军, 刘跃, 王旭峰, 杨锋, 张海芹

Influence of Cold Rolling Q Ratio on Plastic Deformation Texture Evolution of TA18 Tube

ZHANG Wei, ZHANG Bing, ZHOU Jun, LIU Yue, WANG Xufeng, YANG Feng, ZHANG Haiqin

表2 不同Q值冷轧管材的塑性变形机制

Table 2 Plastic deformation mechanism of cold-rolled tubes with different Q ratios

Q Taylor axes Main slip systems Slip mechanisms Kearns factor 1.1 <0001> {011¯0}<112¯0> Prismatic<a> slip Fn, Ft, Fr 1.4 <0001> {011¯0}<112¯0> Prismatic<a> slip Fn↑, Ft↓, Fr↑ 1.6 <0001> and <01¯10> {011¯0}<112¯0> and {112¯2}<1¯1¯23> Prismatic<a> slip + Pyramidal<c + a>slip Fn↑, Ft↓, Fr 1.8 <0001> and <01¯10> {011¯0}<112¯0> and {112¯2}<1¯1¯23> Prismatic<a> slip + Pyramidal<c + a>slip Fn↑, Ft↓, Fr 2.0 <01¯10> {112¯2}<1¯1¯23> Pyramidal<c + a>slip Fn↑, Ft↓, Fr