Effect of deformation routes on the evolution of strain states and texture during asymmetrical cold rolling and subsequent annealing in interstitial-free steel

Abstract

Asymmetrical rolling was carried out in an interstitial-free steel with different velocities of upper and lower rolls. In order to analyze the effect of change in strain histories on the evolution of textures during asymmetrical cold rolling and subsequent annealing, asymmetrical rolling was performed either reversibly or unidirectionally. The two different asymmetrical rolling routes were accompanied by the formation of different cold rolling textures. The strain state during asymmetrical rolling was determined by the finite element method and verified by macro-texture analysis and texture modeling. Weakening and randomization of textures occurred during recrystallization annealing, which was interpreted by the absence of preferred nucleation in specific orientations.