世界有色金属Issue(14)：7-9,3.
TA31钛合金热变形本构方程与热加工图
Constitutive Equation and Hot Processing Map of Ta31 Titanium Alloy During Hot Deformation
黄拓 1蔡美超 1马晨璐 1檀雯1
作者信息
- 1. 宝鸡钛业股份有限公司,陕西 宝鸡 721014
- 折叠
摘要
Abstract
The deformation behavior of TA31 titanium alloy is highly sensitive to thermal processing parameters,so it is difficult to control its corresponding microstructure and mechanical properties.To identify stable thermal processing windows for achieving optimal microstructure and performance,isothermal compression tests were conducted to simulate and optimize the hot deformation process.Results show that as the strain rate increases from 0.01s-1 to 10s-1,the flow stress rises by 156 MPa,while increasing the deformation temperature from 800℃to 1150℃reduces the flow stress by 165 MPa.A strain rate-compensated Arrhenius hyperbolic sine constitutive model was established to describe the hot deformation behavior of TA31 titanium alloy.Based on the dynamic material model and the Prasad instability criterion,a hot processing map was developed,and the optimal deformation parameters were determined as 940℃to 980℃and 0.01s-1 to 0.1s-1.关键词
TA31钛合金/热变形/流变应力/本构方程/热加工图Key words
TA31 titanium Alloy/Hot deformation/Flow stress/Constitutive equation/hot processing map分类
矿业与冶金引用本文复制引用
黄拓,蔡美超,马晨璐,檀雯..TA31钛合金热变形本构方程与热加工图[J].世界有色金属,2025,(14):7-9,3.
