About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Dynamic Behavior of Materials IX
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Presentation Title |
G-14: High Strain-rate Strength Response of Single Crystal Tantalum through In-situ Hole Closure Imaging Experiments |
Author(s) |
Jonathan Lind, Robert Carson, Nicolas Bertin, Matthew Nelms |
On-Site Speaker (Planned) |
Jonathan Lind |
Abstract Scope |
The properties of crystalline materials often depend on directionality and operating conditions. Specifically, strength can depend anisotropically on crystal direction and loading condition. A preliminary series of high strain-rate (>105/s) plate-impact hole closure experiments were performed on high-purity single crystal Tantalum. The impact/loading condition and orientation of the single crystals were varied to provide data to inform crystal plasticity modeling efforts. The experiments consist of in-situ high-resolution radiographic imaging of the hole collapse under dynamic compression conditions to infer the material strength. The recovered samples are characterized with EBSD to evaluate the deformation structure that developed.
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This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344, by the Dynamic Compression Sector supported by National Nuclear Security Administration under Award Number DE-NA0002442, used resources of the Advanced Photon Source at Argonne National Laboratory under Contract No. DE-AC02-06CH11357. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Modeling and Simulation, Characterization |