About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Development of an Electrochemical Model for Corrosion of 316H Stainless Steel by Molten FLiNaK Using Meso-scale YellowJacket |
Author(s) |
Chaitanya Vivek Bhave, Michael Tonks, Kumar Sridharan, Guiqui Zheng |
On-Site Speaker (Planned) |
Chaitanya Vivek Bhave |
Abstract Scope |
The life-time of molten- salt- facing components in advanced reactor designs is directly impacted by corrosion. Corrosion damage in alloys is strongly concentrated along grain boundaries and results in microstructural evolution. In this work, we have developed an electrochemical phase-field model for the corrosion of 316H stainless steel by molten FLiNaK salt. The Cr depletion and microstructure evolution are driven by free energy functionals obtained from literature thermodynamic assessments. The model is validated against literature experimental corrosion mass loss measurements carried out at the University of Wisconsin-Madison. This model was implemented under the meso-scale YellowJacket project using the Multiphysics Object-Oriented Simulation Environment (MOOSE), an open-source finite-element framework. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Nuclear Materials, Environmental Effects |