The different effects of asymmetric rolling and surface friction on formation of shear texture in aluminium alloy AA5754

Conventional rolling and asymmetric rolling (ASR) processes were applied to aluminium alloy AA5754 with different roll metal frictional conditions. The rolling textures were determined by X-ray diffraction technique and the formation of shear texture was studied. It has been demonstrated that the ASR and friction have different effects on the generation of shear texture. The ASR forces the deformation texture to rotate about the transverse direction from the fcc plane strain compression texture, while a high friction generates a so called ideal fcc shear texture consisting of the {001}〈110〉 and {111}〈uvw〉 components. The effect of ASR penetrates throughout the sheet thickness, but that of friction exists only from the sheet surface to one-quarter thickness.