High pressure response of a high-purity iron

Veeser, L. R.; Gray, G. T.; Vorthman, J. E.; Rodriguez, P. J.; Hixson, R. S.; Hayes, D. B.
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p73
Academic Journal
A series of time-resolved experiments has been done using a 50-mm-diameter light gas gun to characterize the shock uniaxial strain and high-strain-rate response of a high purity iron. The high-strain-rate uniaxial stress response of the iron was characterized using a Split-Hopkinson Pressure Bar. Shock wave experiments were done both with and without windows with a VISAR diagnostic to obtain time-resolved particle velocity data. The shock experiments with windows yield information on elastic/plastic response, transformation kinetics, sound speed, and quasi-elastic release. Experiments were conducted without windows both below and above the α-to-ε phase transformation to study the effect of phase-change kinetics and the release transition on the spallation response in iron. Results of the shock and Hopkinson bar experiments are compared and contrasted to previous research on iron.


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