Effects of Mn Content on Recrystallization Behavior and Texture Evolution of 3xxx Al Alloy

摘要

Recrystallization behavior and texture evolution of AA3104 beverage can body stock with various Mn contents were investigated by proper combination of the thermomechanical process simulator (Gleeble 3800) and heat treatment. The result shows that the incubation time of recrystallization was shortened but the recrystallized grain growth rate was decelerated with increasing the Mn contents. The behavior could be interpreted via the Particle Stimulated Nucleation (PSN) effect during the incubation period and the pinning force of solute Mn at growth. As for texture evolution, the intensity of the cube component exhibits an evidently dependence on the number of particles with a diameter larger than the critical value dc. The number of these "active" particles increases with the level of Mn content before recrystallization results in the reducing of the intensity of the Cube component. The phenomenon could be explained quantitatively in terms of the criterion recommended by Humphreys.