| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior at the Nanoscale V
|
| Presentation Title |
Deformation Mechanisms in a Nanocrystalline CuTa Alloys under Shock Loading Conditions |
| Author(s) |
Billy Hornbuckle, Steven Dean, Xuyang Zhou, Anit Giri, Anthony Roberts, Greg Thompson, Kris Darling |
| On-Site Speaker (Planned) |
Billy Hornbuckle |
| Abstract Scope |
The deformation mechanisms truly governing nanocrystalline materials are still a bit of a mystery with regard to a thermally and mechanically stable nanocrystalline alloy. This work looks to report on the deformation mechanisms in a Cu-3Ta (At.%) alloy that has undergone shock loading via laser-driven flyer plate experiments. The highest plate velocity of 2.4 km/sec generates a 34 GPa pressure wave through the alloy. Post mortem transmission electron microscopy (TEM) is performed on a sample extracted from the impact crater using a focused ion beam (FIB) to note changes in grain size, dislocation density, and possible twin formation. Precession electron diffraction (PED) is also performed to quantify any change in texture evolution of the specimen after experiencing these elevated stress state. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |