About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Reducing Graphite Interactions with Structural Corrosion Products |
Author(s) |
Cody Falconer, Hongliang Zhang, Kumar Sridharan, Adrien Couet |
On-Site Speaker (Planned) |
Cody Falconer |
Abstract Scope |
With the development of the FHR, understanding and eliminating material/salt interactions with components such as the graphite-based fuel and moderator may be critical for the longevity of the reactor. In the FHR concept, salt-facing graphite is anticipated to be present as the FHR utilizes graphite as a moderator as well as a salt-facing coating on the fuel compact. The challenge for this large surface area of graphite is its interactions with the corrosion products created from the corrosion of the structural alloy used in the reactor. It has been previously demonstrated through corrosion tests that the presence of graphite accelerates the corrosion of alloys due to activity gradients that result in the deposition of a carbide onto graphite surfaces. In this work, it is demonstrated that this carbide formation will occur. Furthermore, a novel coating design is demonstrated and shown to greatly reduce graphite interactions during static salt exposure tests. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, High-Temperature Materials, Other |