|About this Abstract
||3rd World Congress on High Entropy Alloys (HEA 2023)
||Oxidation Behaviors of Ta-Ti-Cr RMPEAs
||Noah J. Welch, Todd Butler, Maria Quintana, Samuel Kuhr, Peter Collins
|On-Site Speaker (Planned)
||Noah J. Welch
Refractory Multi-Principal Element Alloys (RMPEAs) have been shown to exhibit favorable oxidation resistance at high temperatures (>1000°C) due to the formation of complex oxides and suppression of simple, deleterious oxides such as Ta2O5. The TaTiCr alloy family shows promise in this space with relatively low density, high melting temperature and enhanced oxidation resistance when compared to traditional, dilute refractory alloys. An in-depth characterization of the role of microstructure, alloy chemistry and temperature on the resulting oxidation behaviors will be discussed. The resulting oxides, kinetics and associated thermodynamics will be addressed with respect to related alloys systems. Future challenges with respect to the understanding of RMPEA oxidation will also be described.
||Planned: Metallurgical and Materials Transactions