| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Entropy Alloys IX: Alloy Development and Properties
|
| Presentation Title |
Mechanical and Elastic Behavior as Well as Microstructural Response of NbTaTiV and NbTaTiVZr as a Function of Strain Rate |
| Author(s) |
Mathew L. Hayne, Saryu J Fensin, Tarik A Saleh, Chanho Lee, Peter K Liaw |
| On-Site Speaker (Planned) |
Mathew L. Hayne |
| Abstract Scope |
High entropy alloys (HEAs) represent a rapidly expanding field in metallurgy due to their unique ability to meet mechanical design criteria over a range of deformation rates. To date, most studies evaluating the mechanical properties of these alloys have focused on quasi-static compression testing, with only a few studies being conducted to understand the response at high strain rates. In this study, the mechanical properties of two refractory high-entropy alloys (RHEA), NbTaTiV and NbTaTiVZr, have been investigated using resonant ultrasound spectroscopy (RUS), quasi-static compression, and high strain-rate compression via Split Hopkinson pressure bar (SHPB). Pre- and post-deformation microstructures were examined using electron microscopy to help elucidate the mechanisms leading to both materials exhibiting an increase in the yield stress as a response to the increased strain rate. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Characterization |