| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Synergistic Irradiation, Corrosion, and Microstructural Evolution in Nuclear Materials
|
| Presentation Title |
In-situ Measurement and Analysis of Structural Alloy Corrosion in Liquid Metals |
| Author(s) |
Peter Hosemann, Jie Qiu, Franziska Schmied, John Scully, Yongqiang Wang, Blas Uberuaga, Djamel Kaoumi, Farida Selim, Rasheed Auguste, Junsoo Han |
| On-Site Speaker (Planned) |
Peter Hosemann |
| Abstract Scope |
Heavy liquid metals are candidates for cooling media in fast reactors in the Gen IV nuclear roadmap, with several designs pursuing heavy liquid metal cooled reactors. Furthermore, alloying lithium into heavy metal coolants is also considered for fusion applications. However, a thorough understanding of the structural materials corrosion phenomenon under these combinatorial extreme environments is still missing. This work here presents in-situ and ex-situ examination of Fe-Cr based materials and the protective oxides formed during exposure to liquid metals, addressing fundamental transport mechanisms through passive films in their environment. Positron annihilation spectroscopy and impedance spectroscopy, coupled with conventional microscopy, are used to provide a comprehensive understanding of transport through passive films. This work further highlights in-situ heavy liquid metal corrosion under irradiation performed to date with recent in-situ diagnostics. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Environmental Effects, Nuclear Materials |