Rolling and Recrystallization Textures in High Purity Al–Mg Alloys

In order to investigate the effect of Mg in the development of the rolling and recrystallization textures in Al, Al–Mg alloys containing Mg in the range between 0.5 and 5 % were cold rolled 95 % and subsequently annealed at 300 °C up to complete recrystallization. It was found that, in the rolling texture, the addition of Mg above 3 % significantly reduced the orientations in the range between {112}〈111〉 and {123}〈634〉 lying along the β fiber. This was attributed to frequent shear banding, which was enhanced by Mg atoms in grains of these orientations. Intensities of the {110}〈112〉 rolling texture component were not affected by the Mg addition. In the recrystallization textures, the {123}〈634〉 orientation was reduced by the addition of Mg. The {100}〈001〉 orientation, on the other hand, increased remarkably with the increasing amount of Mg addition. At the Mg content above 3 %, however, the {100}〈001〉 orientation decreased appreciably with the increase in Mg content. This decrease in the {100}〈001〉 orientation seems to be correlated with the decrease in the β fiber rolling texture component positioning between {112}〈111〉 and {123}〈634〉.