Texture evolution of semi-processed non-oriented silicon steel with temper rolling

Macrotextures of a semi-processed non-oriented silicon steel were measured in the production process from hot rolling (with the finish rolling temperature below Ar1) to final stress relief annealing, and the texture evolution were analyzed in the form of orientation distribution function. It was found that the main component in the surface layer of a hot rolled strip was 111plane texture resulting from ferritic recrystallization; while shear texture and rolling texture were dominant at the center and at the 1/4 thickness of the strip. After cold rolling, the texture components at the center and in the surface were similar. The fractions of 111, 112 and 00 plane textures all increased, particularly 111 component was intensified most significantly. After softening annealing, the fractions of 001〈110〉 and 112 〈110〉 components both decreased rapidly and T fiber emerged as the dominant component. When the primarily annealed strip was subjected to temper rolling and subsequent stress relief annealing, the unfavorable 111 plane texture diminished while the GOSS component increased distinctly. Such experimental results could be explained by the calculated Taylor factor distribution since Taylor factors quantitatively linked deformation stored energy in grains to orientations of the grains.