采用Gleeble-3500热模拟实验机,分析6013铝合金在变形温度613 ~773 K、应变速率10-3~ 10 s-1和工程变形量10%~ 60%条件下的平面热压缩变形流变应力演化规律,求解热变形本构方程,建立热加工图,探讨其热变形行为机理.结果表明,6013铝合金的流变软化机制以动态回复为主;采用包含关于变形温度函数的幂函数本构方程可较好的预测其流变行为,与实测值的平均相对误差仅为6.631%;确定了单道次大应变热轧成型最佳工艺参数区间:673 K<T<773 K且5×10-3 s-1<ε<10-1s-1和多道次热轧最佳工艺参数区间:633 K<T<733 K且10-1s-1<ε<1 s-1.
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