The Influence of Friction on the Texture Formation of a IF Steel during Hot Rolling in the Ferrite Region

The effect of friction on evolution of the microstructure and texture during hot rolling in the ferrite region was studied with secondary electromicroscopy (SEM), X-ray diffractometer, and FEM simulation. The friction between a roll and a steel sheet surface leads to the formation of notable through-thickness texture gradients. The finite element method (FEM) simulation shows that the large friction coefficient between a roll and sample results in a pronounced variation of (epsilon) over dot(13) (shear strain rate) and large epsilon(13)/epsilon(11) value which accounts for strong {110}< 001 > texture components and weak gamma-fiber components at rolled sheet surface; whereas the friction condition do not exert notable effect on texture formation at the sheet center.