Quasi-Static and Dynamic Properties of Ti-3Al-2.5V Titanium Alloy Tubes
Quasi-Static and Dynamic Properties of Ti-3Al-2.5V Titanium Alloy Tubes
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DOI：
10.1088/1757-899x/381/1/012167
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发表时间：
2018-08
期刊：
影响因子：
--
通讯作者：
Rui Liu;Yang Li
中科院分区：
文献类型：
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作者：
Rui Liu;Yang Li
This paper aimed to study the quasi-static and dynamic properties of Ti-3Al-2.5V titanium alloy seamless tubes. The extrusion billets were hot extruded, and then multipass cold rolled into tubes with outside diameter of 6mm, 8mm, 12mm respectively, and wall thickness of 0.5mm, 0.6mm, and 0.9mm respectively. The quasi-static properties were investigated by MTSTM testing system at strain rate of 10-3 s-1, while dynamic compression properties by Split Hopkinson Pressure Bar system at strain rate of 3000±200 s-1. The results show that the values of contractile strain ratio of the tubes are between 1.34 and 1.77. The quasi-static yield strength of the tubes is above 765MPa, which is 75 ∼ 80% of that of commercial Ti-6Al-4V plates. The dynamic plasticity of the tubes is comparable to commercial Ti-6Al-4V plates, while the dynamic strength of the tubes is only 50∼60% of that of commercial Ti-6Al-4V plates.
