Effect of annealing on the texture and mechanical properties of pure Mg by ECAP at room temperature

A pure Magnesium (Mg) bar clad by a drilled Fe coat was successfully processed by equal channel angular pressing (ECAP) using a die with a crossing angle of 90°. After annealing, a large number of equiaxed grains appeared in the microstructure, manifesting that static recrystallization took place in the annealing process, and the microstructure was the most homogeneous after annealing at 200 °C for 30 min. The (0001), (10-10) and (10-11) textures were softened but their distribution is nearly unchanged. Compressive yield strengths of annealed samples decreased as a result of the grain growth and decline of dislocation density. The comprehensive properties were the best after annealing for 30 min at 200 °C, which is attributed to its fine microstructure.