交叉轧制周期对高纯Ta板变形及再结晶梯度的影响

祝佳林,刘施峰,曹宇,柳亚辉,邓超,刘庆

Effect of Cross Rolling Cycle on the Deformed and Recrystallized Gradient in High-Purity Tantalum Plate

Jialin ZHU,Shifeng LIU,Yu CAO,Yahui LIU,Chao DENG,Qing LIU

表5 EBSD半定量评估Ta板表面和中心层{111}和{100}晶粒内的储存能及相关参数

Table 5 Local stored energies in {111} and {100} grains at the surface and center layer by EBSD

Rolling cycle Position Grain orientation Qi(gi) Qmax Qmin Hi / (J·mol-1) First cycle Surface {100} 86.5 121.5 13.5 3.241 {111} 76.5 109.5 22.5 3.793 Center {100} 82.5 119.5 18.5 3.663 {111} 63.5 125.5 14.5 5.586 Second cycle Surface {100} 96.5 130.5 23.5 3.178 {111} 93.5 128.5 29.5 3.535 Center {100} 91.5 126.5 20.5 3.302 {111} 87.5 126.5 18.5 3.611