Role of deformation temperature on the evolution and heterogeneity of texture during equal channel angular pressing of magnesium

Investigations on texture evolution and through-thickness texture heterogeneity during equal channel angular pressing (ECAP) of pure magnesium at 200°C, 150°C and room temperature (RT) was carried out by neutron, high energy synchrotron X-ray and electron back-scatter diffraction. Irrespective of the ECAP temperature, a distinctive basal (B) and pyramidal (C2) II type of fibers forms. The texture differs in the bottom 1mm portion, where the B-fiber is shifted ~55° due to negative shear attributed to friction. •ECAP of magnesium was carried out at 200°C, 150°C and room temperature.•Microstructure and micro-texture evolution was examined using EBSD in FEG–SEM.•Bulk-texture was studied using neutron diffraction and compared with micro-texture.•Through thickness texture heterogeneity was observed by synchrotron radiation.•Changes in these parameters with respect to deformation temperature are discussed.