Recrystallization nucleation in stable aluminium-base single crystals: Crystallography and mechanisms

The crystal lattice rotation of elongated grains takes place around axes near the 〈111 pole, corresponding to the {111} plane along which preferred grain growth occurs. Although the rotation axes approach the normal vector of the preferred slip planes they only rarely coincide with the exact location of the 〈111〉 directions. For the particular case of grains elongated along the (111) and (11−1) planes, the rotation axes are situated near the [111] and [11−1] poles, respectively. Only a small number of grains are elongated along traces of two other {111} planes. In ND/ED section they run vertically, i.e. along ND direction (Fig. 14a). None of the grains grows horizontally, i.e. parallel to TD.260