对Al-1.8Cu-0.4Mg-0.4Mn合金冷轧织构演变过程进行了研究.结果表明:冷轧试样呈现“铜式”织构特征,但G组分较强,在70%变形量时达最大;再结晶退火后,织构较弥散;分级加热再结晶退火后再次进行80%压下量的冷轧,初次冷轧50%的试样形成弱的旋转立方织构,而70%的试样则形成“铜式”织构;在快速加热再结晶退火条件下,初次冷轧50%的试样形成强的旋转立方织构,而初次冷轧70%的试样则形成弱的{001}〈110〉旋转立方织构.

Al-1.8Cu-0.4Mg-0.4Mn aluminum alloy was cold-rolled with different reductions and the texture evolution was investigated.The results show that textures of the samples initially cold-rolled are typical copper-type but with strong G component which got maximum at 70% reduction.Recrystallization texture after annealing is random.However,weak {001}〈110〉 rotated cube component appeares in the sample which was cold-rolled initially with 50% reduction and heated step by step for annealing and finally cold-rolled with 80% reduction.Copper-type texture appeares in the sample that was cold-rolled initially with 70% reduction,and then processe in the same way mentioned above.But after rapidly heating annealing,the sample with 50% initial rolling reduction and 80% final rolling reduction,have strong {001}〈110〉 rotated cube component.The sample with 70% initial rolling reduction and 80% final rolling reduction have weak {001}〈110〉 rotated cube component.