About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Development of Molten Salt Corrosion Resistant Material |
| Author(s) |
Rongjie Song, Xinchang Zhang, Qiufeng Yang, Jia-Hong Ke, Jingfan Yang, Ruchi Gakhar, Michael McMurtrey |
| On-Site Speaker (Planned) |
Rongjie Song |
| Abstract Scope |
Traditional reactor materials often prove inadequate for long-term application in the molten salt reactor designs, and this can increase the burden on materials reprocessing, decommissioning and disposal. Therefore, the objective of this project is to develop a state-of-the-art structural material with a good combination of mechanical properties and corrosion resistance to molten salt environment. The Ni-Mo materials with Y and Y2O3 were successfully fabricated with densities of >99% using electric field-assisted sintering (EFAS). The addition of Y and Y2O3 in Ni-Mo matrix refines austenite grain size and increases material strength with a concomitant decrease in ductility. Preliminary static corrosion testing in purified FLiNaK salt showed 50% corrosion resistance improvement with the addition of Y, and 80% improvement with Y+Y2O3 addition comparing to the Ni+Mo material. Monte Carlo simulation showed the clustering of Y atoms in Ni-Mo alloy, which can trap vacancy and slow down corrosion kinetics. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Characterization, Other |