摘要
在温度为473K～623K、应变速率为0.1s-1～0.001s-1的条件下对7B04-T6铝合金板材进行温拉伸实验,研究该材料在所选定温度和应变速率下的流变应力变化数据。对Fields and Backofen流变应力数学方程进行修正,建立该材料的流变应力数学模型。通过与实测结果比较,Fields and Backofen模型在峰值应力之前能较好地反映流变应力的变化。
The flow stress of 7B04-T6 aluminum alloy sheet in the selected temperature and strain rate is learned based on warm tensile tests which were carried out in the temperature ranging from 473K to 623K and the strain rate ranging from 0.1s-1 to 0.001s-1. The flow stress mathematical model of this material were established by modifying the Fields-Backofen equation. Compared with the test results, the Fields-Backofen model fit the flow stress well before the peak stress.
出处
《全面腐蚀控制》
2011年第3期40-43,共4页
Total Corrosion Control
关键词
铝合金
温拉伸
流变应力
aluminum alloy
warm tensile
flow stress
