| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Simulations/Experiments Integration for Next Generation Hypersonic Materials
|
| Presentation Title |
Degradation Resistance of Refractory Multi-principal Element Alloys for Extreme Environments |
| Author(s) |
Jibril Shittu, Connor Rietema, Michael Juhasz, Zachary Sims, Hunter Henderson, Alexander Baker, Kate Elder, Joel Berry, Aurélien Perron, Brandon Bocklund, Thomas Voisin, Scott Mccall, Joseph Mckeown |
| On-Site Speaker (Planned) |
Jibril Shittu |
| Abstract Scope |
With a renewed interest in advancing the capability of materials for extreme conditions, tailoring
multi-principal element alloys (MPEAs) to achieve ultra-high strength and degradation resistance
are of paramount importance. Exploiting the wider compositional landscape of MPEAs allows
tailoring fundamental metallurgical properties such as microstructure, phase stability, thermal
conductivity, and the coefficient of thermal expansion needed to develop degradation resistant
alloys. This presentation introduces candidate MPEAs that were experimentally confirmed to
exhibit improved thermal transport properties, strength, tribological resistance, and oxidation
resistance at room temperatures and elevated temperatures. Highlights of this study promotes the
potential of utilizing MPEAs for harsh environments by characterizing their retained mechanical
properties at elevated temperatures, and extended service life when compared to current structural
materials.
Prepared by LLNL under Contract DE-AC52-07NA27344. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, High-Temperature Materials, Mechanical Properties |