工业纯铝热变形流动应力的研究  

Study on Flow Stress of Aluminum at Hot Deformation

作　　者：许树勤[1] 许彩霞[1] 

机构地区：[1]太原理工大学材料科学与工程学院,山西太原030024

出　　处：《太原理工大学学报》2003年第4期406-408,共3页Journal of Taiyuan University of Technology

基　　金：山西省自然科学基金项目 ( 2 0 0 0 10 41)

摘　　要：在GLEEBLE 1 5 0 0热模拟机上 ,对工业纯铝进行了热变形试验 ,获得了流动应力———应力应变曲线。根据最小二乘法原理回归出选用不同数学模型时该材料热变形流动应力的数学公式 ,并且用数理统计对回归结果进行了评价。The compression experiments of aluminum at hot deformation are done using GLEEBLE 1500 thermomechanical simulator. The true stress strain curves at different temperature and strain rates are obtained. By least square method the flow stress expressions are regressed for different mathematical models and the results of regression are evaluated using mathematical statistics. The curves and the models can be used as basic data in both engineering calculation and simulation for aluminum processing.

关 键 词：工业纯铝 流动应力 数学模型 

分 类 号：TG304[金属学及工艺—金属压力加工]