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Title: Shock compression of molybdenum single crystals to 110 GPa: Elastic–plastic deformation and crystal anisotropy

Abstract

To explore the role of crystal anisotropy on the elastic-plastic deformation of BCC single crystals at high shock stresses, molybdenum (Mo) single crystals were shock compressed along [100], [111], and [110] orientations at elastic impact stresses between 20 and 110 GPa. Laser interferometry was used to measure shock wave velocities and particle velocity histories. Along the [100] and [111] orientations, elastic-plastic waves (two wave structure) were observed up to 110 GPa. Along the [110] orientation, the two wave structure was observed only up to 90 GPa. The measured elastic wave amplitudes were analyzed to determine crystal anisotropy effects, impact stress dependence, and the activated slip systems on the Hugoniot elastic limit. The results from our work have provided insight into the role of crystal anisotropy on the elastic-plastic deformation under shock compression at high stresses.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]
  1. California Institute of Technology (CalTech), Pasadena, CA (United States)
  2. Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Publication Date:
Research Org.:
Washington State Univ., Pullman, WA (United States). Inst. for Shock Physics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
OSTI Identifier:
1633426
Grant/Contract Number:  
NA0002007
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 127; Journal Issue: 20; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Oniyama, Tomoyuki, Gupta, Yogendra M., and Ravichandran, Guruswami. Shock compression of molybdenum single crystals to 110 GPa: Elastic–plastic deformation and crystal anisotropy. United States: N. p., 2020. Web. doi:10.1063/5.0006559.
Oniyama, Tomoyuki, Gupta, Yogendra M., & Ravichandran, Guruswami. Shock compression of molybdenum single crystals to 110 GPa: Elastic–plastic deformation and crystal anisotropy. United States. doi:https://doi.org/10.1063/5.0006559
Oniyama, Tomoyuki, Gupta, Yogendra M., and Ravichandran, Guruswami. Fri . "Shock compression of molybdenum single crystals to 110 GPa: Elastic–plastic deformation and crystal anisotropy". United States. doi:https://doi.org/10.1063/5.0006559.
@article{osti_1633426,
title = {Shock compression of molybdenum single crystals to 110 GPa: Elastic–plastic deformation and crystal anisotropy},
author = {Oniyama, Tomoyuki and Gupta, Yogendra M. and Ravichandran, Guruswami},
abstractNote = {To explore the role of crystal anisotropy on the elastic-plastic deformation of BCC single crystals at high shock stresses, molybdenum (Mo) single crystals were shock compressed along [100], [111], and [110] orientations at elastic impact stresses between 20 and 110 GPa. Laser interferometry was used to measure shock wave velocities and particle velocity histories. Along the [100] and [111] orientations, elastic-plastic waves (two wave structure) were observed up to 110 GPa. Along the [110] orientation, the two wave structure was observed only up to 90 GPa. The measured elastic wave amplitudes were analyzed to determine crystal anisotropy effects, impact stress dependence, and the activated slip systems on the Hugoniot elastic limit. The results from our work have provided insight into the role of crystal anisotropy on the elastic-plastic deformation under shock compression at high stresses.},
doi = {10.1063/5.0006559},
journal = {Journal of Applied Physics},
number = 20,
volume = 127,
place = {United States},
year = {2020},
month = {5}
}

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