Dynamic Recrystallization Textures in Ferrite and Ferritic Stainless Steels

Abstract

The textures produced in two conventional IF steels, two ferritic stainless steels and α-iron were determined after deformation in torsion over the temperature range 20-1200°C. The experiments were carried out in the ferrite range and the conditions were chosen so as to eliminate the possibility of static recrystallization. The differences between the deformation and dynamic recrystallization (DRX) textures are sharp. The ideal orientations observed at room temperature are F(110) , J1(011) , J2(110) , D1(112) , D2(112) , E1(011) and E2(011) . The texture produced under dynamic recrystallization conditions is dominated by the D1, D2 and E2 components. The simulations indicate that the low stored energy nucleation mechanism plays the dominant role in the formation of bcc DRX textures. The results are also interpreted in terms of the continuous (in situ) and discontinuous mechanisms of dynamic recrystallization.