About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
O-2: Corrosion of 316H Stainless Steel and Graphite in Static Molten FLiNaK Salt |
Author(s) |
Sarah Mcquaid, Stephen Raiman |
On-Site Speaker (Planned) |
Sarah Mcquaid |
Abstract Scope |
The use of molten salt in molten salt reactors (MSR) introduces a new set of design requirements because of its interaction with the structural alloys. Graphite, the most common moderator material in thermal spectrum MSRs, is believed to interact with salt-facing structural stainless steel, but debate exists regarding the nature and extent of the interactions.
For this work, the corrosion of 316H SS in molten FLiNaK salt with and without graphite was examined to study the effects of the molten salt and graphite moderator on the alloy’s corrosion behavior and mechanical properties. Tests were run at 650 °C for 100 hours in sealed nickel crucibles. Samples exposed in the same crucible with graphite were characterized to look for formation of chromium carbides that may affect mechanical behavior. This poster will present new insights into the interaction of stainless steel and graphite in molten fluoride salt. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, High-Temperature Materials, Other |