摘要
在Gleeble-1500热模拟试验机上对TC11钛合金在温度为760—960℃，应变速率为0．001-5．0s^-1，变形程度为50％条件下的高温流变应力变化规律进行了研究．在分析变形温度、变形程度和应变速率对流动应力影响规律的基础上，依据Arrhenius方程对实验数据进行回归，得到了TC11钛合金的本构关系模型，为钛合金高温变形过程的数值模拟提供了重要计算模型．
The flow stress evolution of TC11 titanium alloy during deformation at high temperature is studied in the temperature range of 760℃ -960℃, strain rate range of 0. 001 -5. 0s^-1 and deformation degree of 50% on Gleehleo 1500 thermo-mechanical simulator. Based on the analysis of effect of deformation temperature, deformation degree and strain rate on the flow stress, the constitutive relational modal of TC11 titanium alloy is obtained by regression of experimental data according to the Arrhenius equation. Thus, an important computational model for numerical simulation of TC11 titanium alloy during deformation at high temperature is provided.
出处
《沈阳理工大学学报》
CAS
2006年第6期68-71,共4页
Journal of Shenyang Ligong University
关键词
本构方程
流动应力
应变
高温变形
constitutive equation
flow stress
strain
deformation at high temperatures
