Microstructure and texture evolution of a 60% cold-rolled Fe-22.3Mn-0.3C alloy during annealing at 550°C were studied. Shear bands, triple junctions and grain boundaries were found to be the preferential nucleation sites. The orientations of the nuclei from these sites were found to be mainly random, but also partly located in α-(//ND) and γ-fibers (//ND). After annealing, fine recrystallized grains formed with abundant annealing twins which had a strong impact on the texture development. The final texture was of low intensity and revealed a weak α-fiber.

High manganese TRIP/TWIP steels with different Mn contents were subjected to uniaxial deformation. The textures, misorientations and orientation relationships were determined in austenite, HCP/BCC martensites and ferrite. It is observed that the mechanically stabilized austenite possesses mainly stable deformation texture, the intermediate HCP martensite possesses mainly unstable tilted basal texture and the BCC martensite possesses stable deformation texture which was actually mixed with transformation texture. Special misorientations due to either the inherence from austenite or due to twins or variant selection were main components in each phase. K-S relationship became much scattered due to slip-induced misorientations both in martensite and in parent austenite.