【摘要】 采用 Gleeble 1 50 0热模拟机轴对称压缩试验 ,对 51 82铝合金高温流变应力进行了研究。通过对幂指数应力函数中系数 A和 β与应变关系的分析 ,以及采用平均软化法考虑前一道次变形的残余应变对后一道次变形的影响 ,建立了 51 82铝合金多道次热变形流变应力方程。更多还原

【Abstract】 Simple axisymmetric compression tests for 5182 aluminum alloy have been carried out on Gleeble 1500.A modified exponential flow stress model has been studied by considering the values of ln A and β as functions of strain,and by using the uniform softening method to consider the effects of residual strain during multipass hot rolling of 5182 aluminum alloy.更多还原