About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Static Corrosion of 316 Stainless Steel Upon Exposure to Metal Fluorides in Molten Salt |
Author(s) |
Ryan Hayes, Sean Mills, Andrew Minor, Raluca O. Scarlat |
On-Site Speaker (Planned) |
Ryan Hayes |
Abstract Scope |
Widely used in light-water reactors, austenitic 316 stainless steel has been proposed as a candidate material for generation IV reactor concepts. In fluoride salts, the oxide layer that typically protects this alloy from corrosion is removed due to its high solubility. In order to safely operate the fission and fusion reactors that will utilize molten fluoride salts as coolants or fuels, it is paramount that the effects and mechanisms of stainless steel corrosion be well understood. A coupon of 316 stainless steel was exposed to FLiNaK for 50 hours at a temperature of 600 °C. In this salt, dissolved iron(iii) fluoride served as an oxidant to corrode the steel sample. This presentation will focus on the effects dissolved oxidant concentration, comparing the corrosion of this sample with the corrosion of another 316 stainless steel coupon by nickel(ii) fluoride in FLiBe. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Iron and Steel, |