| About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Presentation Title |
Mesoscale YellowJacket: A Phase-field Model for Microstructure Dependent Corrosion of Ni-Cr Alloys by Molten Fluoride Salts |
| Author(s) |
Chaitanya Vivek Bhave, Michael Tonks, Daniel Schwen, David Andersson, Jacob McMurray |
| On-Site Speaker (Planned) |
Chaitanya Vivek Bhave |
| Abstract Scope |
Corrosion of Ni-Cr alloys proposed for use in the containment of molten salts is a major challenge in the commercial utilization of molten salt reactor (MSR) technology. This corrosion damage is sensitive to the microstructure and results in severe microstructure evolution. In this work, an electrochemical phase-field model is being developed for capturing selective depletion of Cr from grain boundaries of the alloy and the resultant formation of sub-surface voids. A study of the effect of alloy microstructure and composition on the corrosion rate and microstructure evolution is performed. This model was implemented under the mesoscale YellowJacket project using the Multiphysics Object-Oriented Simulation Environment (MOOSE), an open-source finite-element framework. The results of this research will be used to form Reduced Order Models (ROMs) for engineering scale models. |
| Proceedings Inclusion? |
Undecided |