To determine crystal anisotropy effects at high stresses, peak states behind the plastic shock waves were examined in BCC single crystals. Using plate impact experiments, molybdenum (Mo) single crystals were shock compressed up to 190 GPa elastic impact stress along , , and  orientations. Laser interferometry was used to measure wave velocities and particle velocity profiles at the Mo–LiF window interface. These data were analyzed to obtain in-material quantities in the peak states. The Hugoniots for  and  orientations were comparable, but the Hugoniot for the  orientation was different from the other two orientations. Also, these Mo single crystal Hugoniots display differences from the polycrystalline Mo Hugoniots. Although none of the differences can be considered large, the present results demonstrate that, unlike FCC metal single crystals (Cu, Al), some anisotropy is preserved in Mo single crystal Hugoniots even at high stresses.
Skip Nav Destination
Research Article| June 30 2021
Peak states of molybdenum single crystals shock compressed to high stresses
Tomoyuki Oniyama ;
Yogendra M. Gupta ;
Tomoyuki Oniyama, Yogendra M. Gupta, Guruswami Ravichandran; Peak states of molybdenum single crystals shock compressed to high stresses. J. Appl. Phys. 28 June 2021; 129 (24): 245906. https://doi.org/10.1063/5.0054395
Download citation file: