摘要
采用Gleeble-1500D热模拟试验研究了7050-H112铝合金在变形温度为300、350、400、450℃,变形程度60%,应变速率为0.01、0.1、1、10s-1时的高温流变和动态再结晶行为,建立了7050-H112铝合金在高温条件下的流变应力本构方程和动态再结晶运动学模型,为后续的热加工工艺制定和有限元模拟分析提供理论依据。
The hot deformation behavior and dynamic recrystallization of 7050-H112 aluminium alloy was investigated using the Gleeble-1500D thermal/mechanical simulation testing machine under the deformation of 60%,the strain rate of0.01s-1,0.1s-1,1s-1 and 10s-1 at the temperature of 300℃,350℃,400℃ and 450℃.The flow constitutive equation under high temperature and the dynamic recrystallization kinematics model were built,which can provide the theoretical basis for subsequent thermal processing and finite element analysis.
出处
《热加工工艺》
CSCD
北大核心
2012年第4期8-10,共3页
Hot Working Technology
基金
科技部国家重大专项项目(G09003.8)
