Dynamic Compression Properties of Ti-xV Titanium Alloys

5th Annual International Workshop on Materials Science and Engineering

Liu, Rui^1

State Key Lab of Nonferrous Metals and Processes, GRIMAT Engineering Institute Co. Ltd, Beijing

100088, China^1

关键词: Beta alloys;    Dynamic compression;    Dynamic strain;    Dynamic strength;    Dynamic stress strain behavior;    Nominal composition;    Split Hopkinson pressure bars;    Strain hardening effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012012/pdf
DOI  :  10.1088/1757-899X/585/1/012012

来源: IOP

【 摘 要 】

This paper is aimed to study the effects of vanadium on dynamic properties of titanium alloys. A series of Ti-xV alloys, with nominal composition Ti-2V, Ti-4V, Ti-8V, Ti-16V and Ti-32V, were prepared as typical representatives for near α, (α+β), metastable β, and β alloys. The dynamic stress-strain behaviors of Ti-xV alloys were investigated by Split Hopkinson Pressure Bar system at the strain rates of 3000±200 s-1. After impact, no visible damages can be observed on specimens of Ti-xV alloys except Ti-16V alloy. Except Ti-32V alloy, it can be found obvious strain hardening effect on the other four alloys. Among the five alloys, Ti-16V alloy exhibits the best dynamic strength. Because strain hardening effect disappears in Ti-32V alloy, the dynamic strength of Ti-32V alloy is a little lower than that of Ti-8V alloy when Ti-8V alloy deformed with dynamic strain of 0.23∼0.25.