Abstract
The Goss orientation, {110}‹001›, in about 3% silicon steel has been the subject of speculation from its scientific and technological points of view. The grain oriented silicon steel is made by hot rolling at about 1300°C, cold rolling, followed by annealing. The Goss texture is formed near the surface layer of a steel sheet when it is rolled in the α phase region at elevated temperatures, because the friction between the sheet and rolls tends to increase with increasing temperature, which in turn increases the shear deformation. The Goss texture remains unchanged even after recrystallization of steel. The Goss texture, which is not stable with respect to plane strain deformation, rotates toward the {111}‹112› orientation. The relaxed constraints (RC) model, in which shear strains parallel to the rolling direction may occur, simulates the formation of the {111}‹112› orientation. The {111}‹112› rolling component is known to lead to the Goss orientation after annealing. The strain energy release maximization model for recrystallization texture advanced by the author predicts the recrystallization texture of {441}‹118› from the {111}‹112› rolling texture. The {441}‹118› orientation yields the Goss orientation when the {441}‹118› orientation is expressed by the Gauss type scattering calculated with a half width angle of 12°. The model also predicts the fact that the Goss texture formed during rolling remains unchanged even after annealing.
