摘要
研究快速加热处理冷轧态AZ31镁合金织的织构演变,并对再结晶机制进行了讨论。结果表明:快速加热处理镁合金过程中,通过晶界弓出形核发生再结晶。150℃低温快速加热处理时,再结晶晶粒相对母体晶粒取向发生了一定的偏转,导致基面织构弱化;随快速加热处理温度升高到250℃,出现了向轧制方向偏转5°～10°的双峰基面织构。
The microstructure evolution and recrystallization mechanism of cold-rolled AZ31 Mg alloy during rapid thermal annealing（RTA） were investigated.The results show that： during rapid thermal annealing treatment,the recrystallization mechanism of the alloy relates to strain induced boundary migration.With respect to RTA at 150 ℃,the orientation coherence between the recrystallized grains and matrix grains becomes weaker,giving rise to the weaken of the basal texture.As the RTA temperature increases to 250 ℃,a splitting of basal poles towards the RD at 5°～10° occurs.
出处
《热加工工艺》
CSCD
北大核心
2012年第16期179-181,共3页
Hot Working Technology
关键词
热处理
镁合金
再结晶
织构
annealing
Mg alloy
recrystallization
texture
