摘要
A commercial AZ91 magnesium alloy with a random initial texture was subjected to homogenization heat treatment （solution annealing） at 450 ℃. This resulted in the appearance of a weak triple （0001）-（10]-0）-（1120） fibber texture. After hot rolling at 400 ℃, the deformation texture was typically （0001） basal with splitting of the basal poles in the rolling direction. After annealing at 450℃ for 36 h, the annealing texture was the retained deformation texture with more homogeneous distribution of poles around the ideal basal orientation. There was no trace of abnormal grain growth.
将具有随机初始织构的工业AZ91镁合金在450℃进行均匀化热处理。经热处理后,合金中出现弱的{0001}–{1010}–{1120}三重纤维织构。经400℃热轧后,合金的变形织构是典型的(0001)基面,其基极沿轧制方向分裂。在450℃退火36 h后,其残余变形织构中的基极沿基面分布更均匀,没有出现晶粒的异常长大。
