Formation of {111}⟨110⟩ and {111}⟨112⟩ textures in cold rolled and annealed IF sheet steel

The relative prevalence of {111}[112] and {111}[110] orientations in the recystallization texture of a partially annealed cold rolled Ti-IF steel was examined using Electron Back-Scattering Diffraction (EBSD). A disproportionately high number of recrystallized grains with a near (111)(112) orientation were observed at the grain boundaries between {111[uvw] and {hkl}[110] deformed grains. It is suggested that the presence of "soft" {hkl} [110] orientations adjacent to a {111}[uvw] grain impacts upon the development of the deformation structure in that grain in such a way as to favour the formation of near {111}[112] nuclei during recrystallization. It is proposed that the formation of in-grain shear bands is an essential part of this process. This mechanism comprises a new explanation for the link between {hkl}[110] deformation textures and {111}[112] recrystallization textures seen in cold rolled IF steels.