The texture and the texture evolution with annealing and deformation corresponding to the tetragonal second phase Al3CaZn(.IMAGE.20vol%) of the superplastic Al-5%Ca-5%Zn alloy has been studied. In the as-received condition, the main texture component is comprised by crystallites in which the c axis tends to be aligned with the normal direction to the rolling plane(ND); i.e. a fiber texture. After annealing, the particles spheroidize and increase in size. With increasing time of annealing, the texture also strengthens and sharpens, indicating that Ostwald ripening is a selective growth process. However, with deformation both under optimum and non-optimum superplastic conditions, the fiber texture is destroyed. The fact that no significant decrease in the maximum texture intensity is observed, suggests that crystallographic slip within second-phase particles, in addition to grain boundary sliding, also takes place.

Peer reviewed