Constitutive model of Ti-25Nb alloy

2nd International Conference on Frontiers of Materials Synthesis and Processing

Liu, Jianjun^1 ; Wang, Kelu^1 ; Li, Xin^1 ; Cheng, Jing^1

School of Aerospace Manufacturing Engineering, Nanchang Hang Kong University, Nanchang

330063, China^1

关键词: Experimental deformation;    Flow stress curves;    Gleeble;    Hot compressive;    Nb alloys;    Simulation machine;    Strain compensation;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/493/1/012154/pdf
DOI  :  10.1088/1757-899X/493/1/012154

来源: IOP

【 摘 要 】

The flow stress curves of Ti-25Nb alloy were acquired by hot compressive tests on Gleeble-3500 thermo-simulation machine at the strain rate range of 0.001-10 s-1 and temperature range of 470-620°C. The results show that the flow stresses decrease with the decrease in strain rate and the increase in temperature in general and modified constitutive model established by Strain compensation of n and A has a high predicted ability under experimental deformation condition.