| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nanostructured Materials in Extreme Environments II
|
| Presentation Title |
High Temperature Molten Lithium Corrosion of Nanostructured Steels |
| Author(s) |
Bradley A. Young, Junliang Liu, Thomas P. Davis, David Armstrong |
| On-Site Speaker (Planned) |
Bradley A. Young |
| Abstract Scope |
Castable nanostructured alloys (CNAs) and oxide dispersion strengthened (ODS) steels have been proposed as candidate structural materials for fusion devices due to their significantly advantageous high-temperature performance compared to conventional steels. An attractive solution for tritium breeding and heat extraction in fusion devices is flowing molten lithium at temperatures around 750-900K and it is necessary that the structural material’s resistance to this extreme environment is understood.
We have developed simple methods for exposing candidate materials to pure liquid lithium for extended periods at relevant temperatures, and for subsequent analysis. The corrosion resistance of the samples is assessed using techniques including electron microscopy and neutron scattering, necessary to assess these materials on an appropriate length scale. Our observations find that significant corrosion occurs on all these materials which affects their nanostructured nature and may therefore alter the material’s high-neutron-load, high-temperature, load-bearing performance in critical components of a fusion power plant. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nanotechnology, High-Temperature Materials, Nanotechnology |