Self-consistent modeling of rolling textures in an austenitic–ferritic duplex steel

Rolling textures of the constituent phases in an austenitic–ferritic duplex stainless steel are measured by X-ray diffraction experiments, showing that the brass-type texture, typical of f.c.c. materials with low SFE, is developed in the austenitic phase, and the rotated-cube and brass-R textures are developed in the ferritic phase. On the basis of the experimental texture components and fibers at different reductions, rolling textures of the respective phases in the duplex steel are simulated using a self-consistent model. After considering various micromechanical interactions within the steel, a reliable prediction of the evolution of grain orientation distributions for the phases at small reductions is achieved. An attempt in modeling the brass-type texture for the f.c.c. metallic phase is also performed by incorporating the shear banding mechanism into the presented model.

Research highlights
► The selection of slip systems is linked to the grain-boundary-mediated activities.
► In the duplex steel interactions between phases play a big role on the texture.
► For austenite, a reliable prediction of texture is achieved at small deformations.
► A model incorporating micro-scale shear banding in f.c.c. phases was developed.