Effect of ECAP die angle and route type on the experimental evolution, crystallographic texture, and mechanical properties of pure magnesium

Abstract In the current study, effect of equal channel angular pressing parameters such as die route type and angle were studied. Billets pure magnesium (Mg) processed successfully through up to 2-passes different routes, A, Bc, C, using dies with internal angles 90° 120° at 225°C. The crystallographic texture microstructural evolution investigated electron back-scatter diffraction. Vickers microhardness tensile properties investigated, analyzed, linked microstructure well. as-annealed condition revealed relatively coarse equiaxed grains coupled some extra-elongated average grain size 6.338 µm. Processing formed an ultrafine structure recrystallized fine grains. This decrease in was associated hardness strength enhancement compared Mg counterpart. ECAP processing that Bc more effective refinement routes A it reduced by 76.45% On other hand, for 120°, routes. C resulted a stronger momentous rotation components. 2-A, 2-Bc, 2-C 90°-die increase Hardness (HV) 76.9, 96, 84.6%, respectively, AA addition, findings higher ultimate drop-in ductility 120°-die. Furthermore, led improvement 14.1, 38.4, 43.75%, improving 80.9, 73.5, 47.6% via 2-C,