中文摘要：

采用X射线衍射仪研究3105铝合金在横轧过程中织构的演变。结果表明：3105铝合金热轧板材具有强的β纤维轧制织构，在横轧过程中B￠{110}á111？、S￠{123}〈17229〉和C￠{112}á110？取向是不稳定的，它们将逐渐向新的坐标系中β纤维的位置旋转；随横轧压下量增大，C￠和S￠取向强度快速降低，B￠取向强度先增加后降低，而β纤维轧制织构的强度逐渐增加；β纤维和剩余组分织构体积分数的变化与轧制真应变的关系遵循Avrami方程，强的初始B￠、S￠和C￠织构显著地提高了β纤维织构的形成速率。

英文摘要：

The hot band of continuous cast 3105 aluminum alloy was cold rolled to different reductions along the original transverse direction. The texture evolution during cross-rolling was investigated by X-ray diffractometry. The results show that the hot band of 3105 aluminum alloy possesses a strong b fiber rolling texture. After 90？ rotation about the normal direction, the typical B, S and C orientations on the b fiber transform into the B￠{110}á111？, S￠{123}á17229？ and C￠{112}á110？ orientations. These orientations are unstable and gradually rotate to the b fiber in the new sample reference frame. As the rolling reduction increases, the intensities of the C￠ and S￠ orientations decrease, while the intensity of the B￠ orientation first increases and then decreases. At the same time, the strength of the b fiber rolling texture increases with increasing rolling reduction. The variation in the volume fractions of the b fiber and remainder components with rolling true strain follows the Avrami equation. The strong initial B￠, S￠ and C￠ textures significantly increase the formation rate of the b fiber rolling texture.