研究轧制态纯铝经搅拌摩擦加工后的微观组织、织构及硬度。采用EBSD技术表征横截面的微观组织及织构。结果表明:焊合区晶粒呈等轴的完全再结晶状。基材主要包含的织构组分有R、S及黄铜R,同时含有少量的铜型织构。在焊合区中心,主要的织构组分是平行于ND指向RD 70°方向的(111),这一区域的织构绕着ND顺时针旋转30°和逆时针旋转60°分别得到回退侧和前进侧距离此区域3 mm的织构。 The microstructure, texture and hardness of rolled pure aluminum after friction stir processing were studied. The EBSD technique was used to characterize the microstructure and texture of the cross section. The results show that the grains in the weld zone are completely equiaxed and recrystallized. The main texture components of the substrate include R, S and brass R, while containing a small amount of copper-based texture. In the center of the weld zone, the main texture component is (111) oriented in the direction of RD at 70 ° parallel to the ND. The texture of this region is regressed around clockwise ND of 30 ° and counterclockwise of 60 °, respectively The side and the forward side are 3 mm from this area.