Peak states of molybdenum single crystals shock compressed to high stresses

Oniyama, Tomoyuki; Gupta, Yogendra M.; Ravichandran, Guruswami

doi:10.1063/5.0054395

Peak states of molybdenum single crystals shock compressed to high stresses

Journal Article · Wed Jun 30 00:00:00 EDT 2021 · Journal of Applied Physics

DOI:https://doi.org/10.1063/5.0054395· OSTI ID:1818145

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California Institute of Technology (CalTech), Pasadena, CA (United States); Institute for Shock Physics, Washington State University
Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
California Institute of Technology (CalTech), Pasadena, CA (United States)

In this work, 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 [100], [110], and [111] 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 [100] and [110] orientations were comparable, but the Hugoniot for the [111] 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.

View Accepted Manuscript (DOE)

Research Organization:: Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)

Grant/Contract Number:: NA0002007

OSTI ID:: 1818145

Journal Information:: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 24 Vol. 129; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Related Subjects

36 MATERIALS SCIENCE
Crystal orientation
Deformation
Laser interferometry
Molybdenum
Plasticity
Shock compression
Shock wave experiments
Wave propagation

Peak states of molybdenum single crystals shock compressed to high stresses

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