| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2023
|
| Presentation Title |
Microstructural and Compositional Evolution in the Tantalum Vanadium System: Towards Refractory Alloys for Extreme Environments |
| Author(s) |
Connor J. Rietema, Jibril Shittu, Alex Baker, Aurélien Perron, Brandon Bocklund, Hunter Henderson, Scott McCall, Joseph McKeown |
| On-Site Speaker (Planned) |
Connor J. Rietema |
| Abstract Scope |
With the growing interest in multicomponent refractory alloys for extreme aerodynamic and aerothermal applications there is a need for further understanding of binary alloy systems. Modeling techniques that enable rapid alloy candidate down-selection like CALPHAD and machine learning necessitate high confidence phase fraction and compositional data of the simpler binary systems. Our work uses a combination of energy and wavelength dispersive spectroscopy alongside traditional and in-situ high temperature x-ray diffractometry to examine the phases present and phase compositions over an array of alloy compositions and temperatures within the Ta-V alloy system and others. We also outline the microstructural evolution and hardness of the Ta-V system and others as a function of heat treatment temperature and elemental composition providing insight into these systems for future alloy development. This work was performed under the auspices of the United States Department of Energy by Lawrence Livermore National Laboratory (LLNL) under Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Temperature Materials, Phase Transformations, High-Entropy Alloys |