Effect of deformation path on texture and tension properties of submicrocrystalline Al-Mg-Si alloy fabricated by differential speed rolling

The work investigated the effect of deformation path on texture and tension properties of submicrocrystalline Al-Mg-Si alloy sample processed by differential speed rolling (DSR). DSR was performed on the present samples rotated between passage utilizing three paths, such as no rotation, rotations along the transverse and rolling axes toward deformation direction in order to understand the roles of the different characteristics of macro-shear. When both no rotation and rotation along the transverse axis were applied, high strength but low ductility would be obtained due to the presence of fine grains together with lamellar bands. A good combination of strength (∼312 MPa) and ductility (∼7.4%) was attained by means of rotation along the rolling axis, giving rise to the conjugation of macro-shear bands. This was explained in relation to the interpretation of recrystallization texture components.