(燕山大学 材料科学与工程学院 亚稳材料制备技术与科学国家重点实验室，秦皇岛 066004)
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}á111ñ、S¢{123}<17229>和C¢{112}á110ñ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。
关键字: 铝合金；横轧；织构
cross-rolled 3105 aluminum alloy
（State Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering,
Yanshan University, Qinhuangdao 066004, China）
Abstract: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}á111ñ, S¢{123}á17229ñ and C¢{112}á110ñ 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.
Key words: aluminum alloy; cross-rolling; texture
