Spallation Response of Ti-6Al-4V: Rear Surface Velocimetry and X-ray Tomography

The investigation of the dynamic tensile or spallation response of materials is generally monitored by the measurement of reload signals during rear surface velocity signals, or post-mortem by metallography of sectioned target assemblies. This latter can only reveal features in two-dimensions, although repeated sectioning can generate a three-dimensional representation of the spalled region. However, X-ray microtomography can generate three-dimensional images without the need for sectioning. In this investigation, we combine rear surface Het-V measurements on Ti-6Al-4V with X-ray microtomography of recovered targets to determine tensile failure mechanisms during dynamic loading.