I found another article that talked about corrosion:
> While the DoE is still investigating ways to get around these showstopping corrosion issues, Prof Memmott said that his team, along with Alpha Tech Research Corp (the commercializing partner for the BYU MSR, and of which Memmott is director and senior technical advisor), believe they have solved the problem by removing water and oxygen from the salt, massively reducing the corrosion issue.
> Memmott said the micro-design doesn't require salt to flow through the reactor, which means it eliminates components such as pumps and valves, as well as solving operational problems, like having to tightly control flow and temperature.
> While the DoE is still investigating ways to get around these showstopping corrosion issues, Prof Memmott said that his team, along with Alpha Tech Research Corp (the commercializing partner for the BYU MSR, and of which Memmott is director and senior technical advisor), believe they have solved the problem by removing water and oxygen from the salt, massively reducing the corrosion issue.
https://www.theregister.com/2022/10/05/micro_molten_salt_rea...