The effect of precipitation on the evolution of recrystallization texture in AA8011 aluminum alloy sheet

An AA8011 aluminum alloy sheet cold rolled by 95% had a typical β-fiber texture, which runs from the copper orientation {112}〈111〉 over the S-orientation {123}〈634〉 to the brass orientation {110}〈112〉 in the Euler space. The development of annealing textures depended on annealing temperatures due to the interaction between precipitation and recrystallization. Upon annealing at a low temperature of 275 °C, substantial precipitation took place before recrystallization. This led to a weak recrystallization texture consisting of the P-orientation {011}〈122〉, the cube orientation {001}〈100〉, and the RD rotated cube orientation {hk0}〈001〉, among which the P-orientation, which developed near large FeAl3 particles, was the main component and the cube orientation originated from the matrix was relatively weak. After annealing at 350 and 500 °C, the cube orientation strongly developed, while the P-orientation did weakly, even though precipitation occurred before or as soon as recrystallization took place. The results were discussed based on the interaction between precipitation and recrystallization. When the cube component developed during annealing, the copper component in the rolling texture disappeared most rapidly in agreement with the prediction of the strain energy release maximization model.