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Title: Femtosecond X-Ray Diffraction Studies of the Reversal of the Microstructural Effects of Plastic Deformation during Shock Release of Tantalum

Here, we have used femtosecond x-ray diffraction to study laser-shocked fiber-textured polycrystalline tantalum targets as the 37–253 GPa shock waves break out from the free surface. We extract the time and depth-dependent strain profiles within the Ta target as the rarefaction wave travels back into the bulk of the sample. In agreement with molecular dynamics simulations, the lattice rotation and the twins that are formed under shock compression are observed to be almost fully eliminated by the rarefaction process.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [2] ;  [5] ;  [5] ;  [2] ;  [2] ;  [1] ;  [2] ;  [5] ;  [2] ;  [2] ;  [1]
  1. Univ. of Oxford (United Kingdom). Dept. of Physics and Clarendon Lab.
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of York (United Kingdom). York Plasma Inst. and Dept. of Physics
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Grant/Contract Number:
EP/J017256/1; AC02-76SF00515; SF00515; SCW-1507; AC52-07NA27344; B609694; B595954
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 120; Journal Issue: 26; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24); Engineering and Physical Sciences Research Council (EPSRC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; shock waves; twinning; x-ray diffraction
OSTI Identifier:
1461826

Sliwa, M., McGonegle, D., Wehrenberg, C., Bolme, C. A., Heighway, P. G., Higginbotham, A., Lazicki, A., Lee, H. J., Nagler, B., Park, H. S., Rudd, R. E., Suggit, M. J., Swift, D., Tavella, F., Zepeda-Ruiz, L., Remington, B. A., and Wark, J. S.. Femtosecond X-Ray Diffraction Studies of the Reversal of the Microstructural Effects of Plastic Deformation during Shock Release of Tantalum. United States: N. p., Web. doi:10.1103/physrevlett.120.265502.
Sliwa, M., McGonegle, D., Wehrenberg, C., Bolme, C. A., Heighway, P. G., Higginbotham, A., Lazicki, A., Lee, H. J., Nagler, B., Park, H. S., Rudd, R. E., Suggit, M. J., Swift, D., Tavella, F., Zepeda-Ruiz, L., Remington, B. A., & Wark, J. S.. Femtosecond X-Ray Diffraction Studies of the Reversal of the Microstructural Effects of Plastic Deformation during Shock Release of Tantalum. United States. doi:10.1103/physrevlett.120.265502.
Sliwa, M., McGonegle, D., Wehrenberg, C., Bolme, C. A., Heighway, P. G., Higginbotham, A., Lazicki, A., Lee, H. J., Nagler, B., Park, H. S., Rudd, R. E., Suggit, M. J., Swift, D., Tavella, F., Zepeda-Ruiz, L., Remington, B. A., and Wark, J. S.. 2018. "Femtosecond X-Ray Diffraction Studies of the Reversal of the Microstructural Effects of Plastic Deformation during Shock Release of Tantalum". United States. doi:10.1103/physrevlett.120.265502.
@article{osti_1461826,
title = {Femtosecond X-Ray Diffraction Studies of the Reversal of the Microstructural Effects of Plastic Deformation during Shock Release of Tantalum},
author = {Sliwa, M. and McGonegle, D. and Wehrenberg, C. and Bolme, C. A. and Heighway, P. G. and Higginbotham, A. and Lazicki, A. and Lee, H. J. and Nagler, B. and Park, H. S. and Rudd, R. E. and Suggit, M. J. and Swift, D. and Tavella, F. and Zepeda-Ruiz, L. and Remington, B. A. and Wark, J. S.},
abstractNote = {Here, we have used femtosecond x-ray diffraction to study laser-shocked fiber-textured polycrystalline tantalum targets as the 37–253 GPa shock waves break out from the free surface. We extract the time and depth-dependent strain profiles within the Ta target as the rarefaction wave travels back into the bulk of the sample. In agreement with molecular dynamics simulations, the lattice rotation and the twins that are formed under shock compression are observed to be almost fully eliminated by the rarefaction process.},
doi = {10.1103/physrevlett.120.265502},
journal = {Physical Review Letters},
number = 26,
volume = 120,
place = {United States},
year = {2018},
month = {6}
}