Texture evolution of rolled AA5052 alloy sheets after annealing

To fabricate the aluminum alloys with good drawability, the textures evolution of the AA5052 sheets after rolling and subsequent annealing was studied. The measurement of the deformation textures was carried out for the sheets in which were cold rolled with high reduction ratio by using the symmetric roll. In addition, the change of the recrystallization texture was investigated after heat treatments of the rolled sheets with various heat treatment conditions. Rolling without lubrication and subsequent annealing led to the formation of favorable rot-CND {0 0 1}〈1 1 0〉 and γ-fiber ND//〈1 1 1〉 textures in AA5052 sheets. From the results, the γ-fiber ND//〈1 1 1〉 component well evolved during rolling at high reduction ratio (reduction over 92%, l/d parameter over 6.3). Among shear deformation textures, the γ-fiber ND//〈1 1 1〉 was not rotated during recrystallization (350 °C). The 5052 aluminum alloy sheet after rolling at high reduction ratio and subsequent annealing had the higher plastic strain ratio, however, the planar anisotropy of this sheet was higher than before.