| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Multiple Principal Component Materials
|
| Presentation Title |
Tailoring Oxidation Behavior of MPEAs Through Microstructural Modification |
| Author(s) |
Michael Pavel, Mark Weaver |
| On-Site Speaker (Planned) |
Michael Pavel |
| Abstract Scope |
Multiple Principal Element Alloys have shown to be possible candidates for replacing nickel- based and other dilute alloy systems in high temperature service environments due to their increased melting temperatures, lower density, and oxidation resistance. Thus far, the bulk of high temperature oxidation research in this field has been performed on either as-cast or homogenized samples with little attention given to microstructural effects on oxygen penetration, specific mass gain, and protective transition time. The goal of this work is to demonstrate the use in engineering unique microstructures through thermal processing to improve oxidation resistance of the equiatomic AlCoCrFeNi alloy. Oxidation studies have been performed under oxygen atmosphere at 900°C and 1000°C via TGA and have been further analyzed using electron microscopy and ex-situ XRD. The design principles learned in this study will prove useful in furthering the oxidation resistance of other MPEAs that may not form protective oxides as readily. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Characterization, Other |