| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Advances in High-Temperature Oxidation and Degradation of Materials for Harsh Environments: A SMD and FMD Symposium Honoring Brian Gleeson
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| Presentation Title |
Advanced Metal Alloys and Coatings for Extreme Environments |
| Author(s) |
Todd M. Butler, Oleg N. Senkov, Nathan C. Levkulich, Samuel J. Kuhr, Byron W.J. McArthur, Daniel B. Miracle |
| On-Site Speaker (Planned) |
Todd M. Butler |
| Abstract Scope |
Advanced aerospace technologies require metallic materials and coatings with capabilities that extend beyond state-of-the-art. This has necessitated a paradigm shift in the exploration of advanced materials/coatings, leaning toward more extreme environments, albeit, for shorter time durations. This requires a fundamental understanding of legacy material solutions employed in unconventional regimes and the development of novel materials/coatings with superior mechanical, thermal and/or environmental performance. One particularly challenging aspect is environmental resistance, especially in the refractory alloy domain, since nearly all refractory alloys exhibit poor oxidation resistance. This talk explores the shortfalls of commercial refractory alloys/coatings and the emergence of concentrated refractory alloys. For the latter, concentrated alloys have been reported to form more favorable complex oxides that do not readily form in dilute alloys but offer a substantial enhancement of oxidation resistance in some cases. Key technical gaps and future opportunities will be presented. |