Effect of rolling method on the recrystallization behavior and recrystallization texture of Al-Mn alloy

Abstract

CC AA 3003 aluminum alloy hot strip was cold-rolled to various thinning degrees along the original rolling and crosswise, followed by annealing at 399 °C and 427 °C for various periods of times. Investigations were conducted on the impact of rolling method on recrystallization and recrystallization texture. The findings demonstrate that the straight-rolled (i.e., in the original rolling direction) sheets annealed at 399 °C have recrystallization textures that are characterized by the M {1 1 3}< 1 1 0 > and P {0 1 1}< 4 5 5 > components, with the M component significantly strengthening with increasing rolling reduction and the P component only slightly strengthening. The M texture diminishes noticeably when the annealing temperature increases from 399 °C to 427 °C, but the P texture weakens very marginally. When the rolling reduction approaches 60% to 70%, the r-cube recrystallization texture is formed in the annealed cross-rolled (i.e., along the original transverse direction) sheets, and the strength of the r-cube texture declines with increasing rolling reduction. The 90% cross-rolled sheet that has been annealed at 399 °C forms the comparatively strong M and extremely weak P textures in comparison to the 90% straight-rolled sheet. With increasing rolling reduction, an increase in the size of recrystallized grains is observed in plates annealed at 399 °C, but it shrinks in sheets that are annealed at 427 °C.