摘要
采用压缩实验法在Gleeble-1500热模拟实验机上测定了33Mn2V钢在恒定温度和恒定速度下的变形抗力.研究结果表明:33Mn2V钢热变形的流变应力随温度的升高和应变的增大而减小.以Kumar本构模型为基础建立了33Mn2V钢热变形的本构方程,同时也通过本构模型计算值与实验所得的数据进行比较,表明该模型能够满足工程应用精度.
The flow stress of 33Mn2V was measured by upset tests of cylindrical samples in the Gleeble-1500 heat stimula- tion machine. The results showed that the flow stress decreased with the increasing of the deformational tempera- ture and the strain. The Kumar model was verified by comparing the values of calculated with those measured in laboratory conditions. And it showed that the Kumar-type constitutive relationship meets the practical needs.
出处
《天津工业大学学报》
CAS
北大核心
2012年第3期78-80,85,共4页
Journal of Tiangong University
基金
天津自然科学基金(11JCZDJC22600)
