Quasi-Static and Dynamic Properties of Ti-4Al-3V-0.6Fe-0.2O Titanium Alloy Plates

3rd Annual International Workshop on Materials Science and Engineering

Liu, Rui^1 ; Hui, Songxiao^1 ; Ye, Wenjun^1 ; Yu, Yang^1 ; Song, Xiaoyun^1

State Key Lab of Nonferrous Metals and Processes, General Research Institute for Nonferrous Metals, Beijing

100088, China^1

关键词: Dynamic compression;    Dynamic flows;    Dynamic plastic deformation;    Dynamic property;    Maximum strains;    Nominal composition;    Split Hopkinson pressure bars;    Testing systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/250/1/012004/pdf
DOI  :  10.1088/1757-899X/250/1/012004

来源: IOP

【 摘 要 】

This paper aimed to study the quasi-static and dynamic properties of the titanium alloy with nominal composition Ti-4Al-3V-0.6Fe-0.2O. The ingots Ti-4Al-3V-0.6Fe-0.2O alloy were forged into slabs of 32 mm thickness by one heat above Tβ-transustemperature and one heat below Tβ-transustemperature, and then rolled into plates of 8 mm thickness by one heat below Tβ-transustemperature. The quasi-static tensile properties were tested by MTSTMtesting system at strain rate of 10-3s-1. The dynamic compression properties were tested by Split Hopkinson Pressure Bar system at strain rate of 3000±200 s-1. The results show that the quasi-static properties of the Ti-4Al-3V-0.6Fe-0.2O plate are comparable to ATI 425TM alloy plate and commercial Ti-6Al-4V plate. The average dynamic flow stress of Ti-4Al-3V-0.6Fe-0.2O plate is comparable to ATI 425TMalloy plate, over 100MPa higher than that of Ti-6Al-4V plate. The maximum strain during homogeneous dynamic plastic deformation of Ti-4Al-3V-0.6Fe-0.2O plate is approximately 15 ∼ 20% higher than that of ATI 425TMalloy plate, and is approximately 80% of that of Ti-6Al-4V plate.