| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Corrosion in Heavy Liquid Metals for Energy Systems
|
| Presentation Title |
Corrosion Behaviour and Microstructural Stability of Alumina-forming Austenitic Steels Exposed to Oxygen-containing Molten Lead |
| Author(s) |
Annette Heinzel, Adrian Jianu, Alfons Weisenburger, Hao Shi, Renate Fetzer, Georg Müller |
| On-Site Speaker (Planned) |
Annette Heinzel |
| Abstract Scope |
Lead and lead-based alloys are under consideration as working fluids for energy-related applications, such as advanced nuclear reactors, concentrated solar power and hydrogen production. However, their compatibility with Al-free structural steels (ferritic-martensitic and austenitic) causes considerable concerns.
Alumina-forming austenitic steels, exhibiting high-temperature creep strength and oxidation resistance combined with a relatively low price, have a great potential to be used as structural materials for advanced energy systems.
Therefore, model steels of FeCrAlNiX system (X: C, N, Nb, Y), were designed to form a protective alumina scale during exposure to oxygen-containing molten lead and to preserve the austenitic structure. The corrosion experiments were performed for up to 5000h, at 550-750°C temperature range in stagnant molten lead. The experimental results are presented and discussed in this communication. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, High-Temperature Materials, Other |