QUADIR et al [19] analyzed the orientations of the lamellar bands (LBs) within the Al layer during ARB. It is clear that there is a dominance of {110} 112 (brass texture) in the presence of other rolling components (Figs. 10(a) and (b)). Figure 10(c) shows that the average spacing of the HAGBs is about 0.7 μm. It can be seen that the LBs are often bowed at boundaries and triple junctions, which is indicative of recovery