Comparison of texture evolution between different thickness layers in cold rolled Al–Mg alloy

The texture evolution at different thickness layers in cold rolled AA 5052 aluminum alloy was analyzed quantitatively in terms of a simple relation between the texture volume fractions and true rolling strain. The effect of roll-gap geometry, friction between the roll and sheet and initial through-thickness texture gradient on the texture evolution during rolling was determined. The results show that the roll-gap geometry decreases the rate of texture evolution at the quarter layer in the early stage of deformation. In the case of oil as a lubricant, the very small friction between the roll and sheet slightly decreases the rate of texture evolution at the surface layer. At large strains the low rate of texture evolution at the center layer can be attributed to its strong initial cube texture.