30Cr3MoV钢热压缩流变应力行为研究

来源期刊：上海金属2011年第3期

论文作者：胡诗超 张恒华 吴晓春 闵永安 许珞萍

文章页码：1 - 5

关键词：30Cr3MoV钢； 流变应力； 形变激活能； 峰值应力； 峰值应变

Key words：30Cr3MoV Steel； Flow Stress； Deformation Activation Energy； Peak Stress； Peak Strain

摘    要：利用Gleeble-3500进行热模拟压缩实验,对低合金钢30Cr3MoV在1 173~1 473 K变形温度以及0.1~10 s^-1应变速率条件下的高温流变应力行为进行了研究。通过对真应力-真应变曲线进行分析得到该材料的形变激活能、流变应力本构方程以及峰值应变和峰值应力与变形温度、应变速率之间的关系方程。

Abstract: The flow stress behaviors of the low alloy steel 30Cr3MoV within the strain rate ranging from 0.1 s^-1 to 10 s^-1 at the temperature ranging from 1 173 K to 1 473 K were investigated on the basis of thermal simulation experiment by using the thermal/stress simulator Gleeble-3500.The activation energy,equation for the heat deformation and the relationships between peak stress,peak strain and deformation temperature,strain rate were obtained by analyzing the stress-strain curves.