Journal article
Twinning and Dislocation Evolution during Shock Compression and Release of Single Crystals: Real-Time X-Ray Diffraction
Physical review letters, Vol.120(26), pp.265503-265503
06/29/2018
Handle:
https://hdl.handle.net/2376/109433
PMID: 30004750
Abstract
Determining the temporal evolution of twinning and/or dislocation slip, in real-time (nanoseconds), in single crystals subjected to plane shock wave loading is a long-standing scientific need. Noncubic crystals pose special challenges because they have many competing slip and twinning systems. Here, we report on time-resolved, in situ, synchrotron Laue x-ray diffraction measurements during shock compression and release of magnesium single crystals that are subjected to compression along the c axis. Significant twinning was observed directly during stress release following shock compression; during compression, only dislocation slip was observed. Our measurements unambiguously distinguish between twinning and dislocation slip on nanosecond timescales in a shocked hexagonal-close-packed metal.
Metrics
15 Record Views
Details
- Title
- Twinning and Dislocation Evolution during Shock Compression and Release of Single Crystals: Real-Time X-Ray Diffraction
- Creators
- Stefan J Turneaure - Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAP Renganathan - Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAJ M Winey - Institute for Shock Physics, Washington State University, Pullman, Washington 99164, USAY M Gupta - Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164, USA
- Publication Details
- Physical review letters, Vol.120(26), pp.265503-265503
- Academic Unit
- Physics and Astronomy, Department of; Institute for Shock Physics
- Publisher
- United States
- Identifiers
- 99900547173301842
- Language
- English
- Resource Type
- Journal article