Influence of twinning-induced recrystallization on texture evolution in a high strain rate compressed Mg-Zn alloy

Recrystallization texture evolution in a high stain rate compressed Mg-1Zn alloy was investigated using electron backscattered diffraction (EBSD). Besides of the {10 (1) over bar2} tension twins (T), {10 (1) over bar1} compression twins (C) and {10 (1) over bar1}-{10 (1) over bar2} double twins (CT), the 53 degrees(10 (1) over bar0) tension-tension double twins (TT) and deviated 75 degrees(1170) tension twin boundaries (T') were observed in the as-deformed sample. When annealed, twinning-induced recrystallization occurred in C and CT twins at the very beginning, which was proved to strongly weaken the basal texture due to a strong orientation scattering by the recrystallized grains. In contrast, the recrystallization of TT twins weakened the basal texture insignificantly. In addition, the lenticular T twins tended to de-twin rather than recrystallize, which remained after 24 h annealing.