About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys V: Mechanical Behavior
|
| Presentation Title |
The Nature of a Potential Passive Film on Refractory High Entropy Alloys |
| Author(s) |
David Alan Shifler |
| On-Site Speaker (Planned) |
David Alan Shifler |
| Abstract Scope |
High entropy alloys (HEAs) have generated considerable interest in the structural materials community; some HEAs have exhibited superior strength, durability, and physical properties that are unobtainable with traditional alloys. Refractory high-entropy alloys (RHEAs) could become the next high-temperature materials for gas turbines and other high-temperature applications.
However, RHEAs have been limited by their corrosion behavior. One major factor controlling oxidation and/or corrosion resistance of traditional alloys are the properties of the passive films that form on the exposed surfaces. Traditional corrosion-resistant alloys tend to spontaneously form stable, protective films from a single element upon environmental exposure. However, the compositional complexity that makes HEAs interesting from a mechanical standpoint also makes their oxidation / corrosion behavior much more complex than conventional alloys. This presentation seeks to create a fundamental understanding of the surface reactions and interactions of the RHEAs that lead to the formation of passive layers, whether simple or complex. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Environmental Effects, High-Temperature Materials |