Abstract
The texture and microstructure varying between thicknesses of hot-rolled sheets can be inherited to the final recrystallized sheets in silicon steel and affect its magnetic properties. Deformed and dynamic recrystallized microstructures produced in the surface layers during hot rolling bring different shear textures. Based on the study of deformed shear textures in the surface layers of hot-rolled sheets, it is necessary to examine the shear textures in the dynamic recrystallization zone. The cast slabs of Fe2.5Si-0.8Al silicon steels with columnar grains are hot rolled in multiple passes. This study investigates the formation of dynamic recrystallization zone and characteristics of shear texture using EBSD technique. Consequently, the distribution of different shear textures in the fine grain region is obtained. The results indicate that the dynamic recrystallization zone in the horizontal band appears in the subsurface layer; simultaneously, it is surrounded by deformed grains with different shear textures