| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Corrosion Resistance of an AlCeMg/Stainless-Steel Reactive Bond |
| Author(s) |
Jamieson Brechtl, Melanie Moses-DeBusk, Yan-Ru Lin, Ercan Cakmak, Tracie Lowe, James Keiser, Michael Kesler, David Weiss, Kashif Nawaz |
| On-Site Speaker (Planned) |
Jamieson Brechtl |
| Abstract Scope |
A longstanding issue for heat exchangers is corrosion. Use of Al-Ce-Mg alloys is a potential solution to this problem due to their corrosion resistance and potential for reaction bonding with other metals. The compositional makeup and corrosion response of Al-2Ce-6Mg (atomic percent)/stainless steel reactive bond interfaces, in a casted heat exchanger header, to acidic condensate will be presented. Characterization with scanning electron microscopy indicated that in the as-cut condition, reactive bond formations occurred repeatedly throughout the length of the tube-alloy interface. Samples cut from the header were subjected to full immersion in nitric, sulfuric, formic, and mixed acid for 267 hours. Further elemental, microstructural characterization revealed that the nitric, sulfuric, and the mixed acid did not significantly affect the reactive bond structure. On the other hand, the sample exposed to formic acid exhibited substantial changes in both the microstructural appearance and the elemental profile across the bond, suggesting oxide formation. |
| Proceedings Inclusion? |
Planned: Light Metals |