Strain Distributions of Plane-Strained and Simple-Sheared Al–Mg Alloy

Strain distribution in plane-strained (rolling) and simple-sheared (torsion) Al–Mg alloy has been estimated using both X-ray line profile analysis and electron backscatter technique. The strain analyses under unified texture distribution by orientation rotation showed that torsion has relatively homogeneous strain distribution regardless of texture component in contrast to inhomogeneous strain in rolling. In addition, annealing texture of torsion has more random texture than inhomogeneous rolling texture. Lower texture difference index in annealed torsion specimens suggest homogeneous strain distribution in simple shear has a higher resistance to strain-induced boundary migration, which has been known to be main reason for strong development of ND||〈100〉 component during annealing of rolled Al sheet.