About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Modeling the Evolution of Structural Alloy Microstructure Due to Molten Salt Corrosion |
Author(s) |
Chaitanya Vivek Bhave, Michael R. Tonks, Kumar Sridharan, Adrien Couet |
On-Site Speaker (Planned) |
Michael R. Tonks |
Abstract Scope |
Corrosion of structural alloys by molten salts can pose a significant engineering challenge for developing molten salt reactors (MSRs). Alloys can experience grain boundary depletion of major structural components such as Cr, Fe, Ni, void formation, and salt infiltration. We have previously developed an electrochemical phase-field model for capturing the depletion of structural alloy components during corrosion by molten salts. This work expands on the mesoscale corrosion model to capture the evolution of the grain structure and void phase evolution driven by corrosion. We study the impact of salt chemistry, grain boundary energy, and the alloy-salt interfacial energy on the formation of voids in the alloy and salt infiltration. Uncertainty quantification is performed on the model to investigate the impact of experimental uncertainty on predictions. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Environmental Effects, Nuclear Materials |