Quasi-Static and Dynamic Properties of Ti-3.5Al-2.5V-1.5Fe-0.25O Titanium Alloy Plates

Abstract:

This paper aimed to study the quasi-static and dynamic properties of a titanium alloy plate with nominal composition Ti-3.5Al-2.5V-1.5Fe-0.25O (ATI 425^TM titanium alloy with lower limit of Al element) in thickness of 8 mm. The quasi-static tensile properties were investigated by MTS^TM 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 quasi-static prperties of the Ti-3.5Al-2.5V-1.5Fe-0.25O plate are comparable to the commercial Ti-6Al-4V plate in 8mm-thick. The Ti-3.5Al-2.5V-1.5Fe-0.25O plate exhibats good dynamic strength. The average dynamic flow stress is 100MPa higher than that of Ti-6Al-4V plate. However, the maximum strain during homogeneous plastic deformation of Ti-3.5Al-2.5V-1.5Fe-0.25O plate is only 50~60% of that of Ti-6Al-4V plate.

• Periodical: Materials Science Forum (Volume 879)
• Pages: 1159-1163
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.879.1159
• Online since: November 2016
• Authors: Rui Liu, Song Xiao Hui, Wen Jun Ye, Rong Chen, Yang Yu, Xiao Yun Song, Yan Yan Fu*
• Keywords: Dynamic Properties, Mechanical Properties, Titanium Alloys

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