| Issue |
EPJ Web Conf.
Volume 183, 2018
DYMAT 2018 - 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Article Number | 02058 | |
| Number of page(s) | 4 | |
| Section | Experimental Techniques | |
| DOI | https://doi.org/10.1051/epjconf/201818302058 | |
| Published online | 07 September 2018 | |
https://doi.org/10.1051/epjconf/201818302058
Research on phase transition and strength under ramp compression with graded density impactor
National Key Laboratory of Shock Waves and Detonation Physics, Institute of Fluid Physics, Chinese Academy of Engineering Physics,
Mianyang
621900,
China
* Corresponding author: typppku@163.com
Published online: 7 September 2018
In our work, graded density impactors fabricated from 8 to 40 layers, are specifically designed to generate desired strain rates (on the order of 105~106 s-1) and thermodynamic path(shock loading-ramp loading-release). And experiments on phase transition and strength for metals (bismuth, LY12 Al) have been performed with light gas gun to peak pressure between 30 GPa and 50 GPa. Particle velocity at sample/window interface in these experiments are simultaneously traced by a distance interferometer system for any reflector, and a wave profile analysis is employed to explore the solidification transition and strength behaviour along elevated isentrope.
© The Authors, published by EDP Sciences, 2018
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