铸造技术2011，Vol.32Issue(2)：221-225,5.
AZ31镁合金高温变形行为及本构模型
Deformation Behavior and Constitutive Equation of AZ31 Magnesium Alloy at Elevated Temperature
摘要
Abstract
Using Gleeble-3500 thermo-mechanical simulator, hot compression test for AZ31 magnesium alloy at deformation temperatures of 523～723 K and strain rates of 0.01 ～ 10.00 s-1 were carried out under maximum strain of 60％.The experimental results show that flow stress increases apparently with strain.Above a critical peak value, flow stress decreases gradually to be a steady state.The characteristic with the dynamic recrystallization occurs during hot compression of AZ31 magnesium alloy.The effects of deformation temperature and strain rate on flow stress are dominating.In this paper, a constitutive equation with Arrheniues item is established to describe the deformation behavior of AZ31 magnesium alloy at elevated temperature.关键词
AZ31镁合金/热压缩实验/变形行为/本构模型分类
金属材料引用本文复制引用
卢雅琳,李兴成,李小平,朱福先..AZ31镁合金高温变形行为及本构模型[J].铸造技术,2011,32(2):221-225,5.基金项目
江苏省高校自然科学研究计划项目(08KJD430012) （08KJD430012）
