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

Oniyama, Tomoyuki and Gupta, Yogendra M. and Ravichandran, Guruswami (2020) Shock compression of molybdenum single crystals to 110 GPa: Elastic–plastic deformation and crystal anisotropy. Journal of Applied Physics, 127 (20). Art. No. 205902. ISSN 0021-8979. https://resolver.caltech.edu/CaltechAUTHORS:20200529-091859660

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Abstract

To investigate 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 the [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 findings from our work have provided insight into the role of crystal anisotropy on the elastic–plastic deformation under shock compression at high stresses.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1063/5.0006559DOIArticle
ORCID:
AuthorORCID
Oniyama, Tomoyuki0000-0001-6097-9917
Gupta, Yogendra M.0000-0002-2669-3015
Ravichandran, Guruswami0000-0002-2912-0001
Additional Information:© 2020 Published under license by AIP Publishing. Submitted: 3 March 2020; Accepted: 4 May 2020; Published Online: 29 May 2020. Data Availability: The data that support the findings of this study are available within the article. We would like to thank Nate Arganbright, Kurt Zimmerman, and Yoshi Toyoda for their help in designing and conducting experiments. We would also like to thank Dr. Michael Winey for his help in obtaining known Hugoniot relations and for useful discussions. This work was supported by the DOE/NNSA (Award No. DE-NA0002007).
Group:GALCIT
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-NA0002007
Issue or Number:20
Record Number:CaltechAUTHORS:20200529-091859660
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200529-091859660
Official Citation:Shock compression of molybdenum single crystals to 110 GPa: Elastic–plastic deformation and crystal anisotropy. Tomoyuki Oniyama, Yogendra M. Gupta, and Guruswami Ravichandran. Journal of Applied Physics 127:20; doi: 10.1063/5.0006559.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103543
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:29 May 2020 17:01
Last Modified:29 May 2020 17:01

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