One way that Thorcon deals with that is by replacing reactor cores every four years. Each module has two sealed "cans," with only one operating at a time, while

One way that Thorcon deals with that is by replacing reactor cores every four years. Each module has two sealed "cans," with only one operating at a time, while the other cools down and then is replaced. https://thorconpower.com/design/ https://thorconpower.com/design/ This seems realistic since Oak Ridge ran their experimental molten salt reactor for five years (though only equivalent to 1.5 years at full power). They used an nickel alloy called Hastelloy-N, didn't see much corruption or neutron embrittlement, and did later work on improving resistance to embrittlement. https://en.wikipedia.org/wiki/Molten-Salt_Reactor_Experiment https://en.wikipedia.org/wiki/Molten-Salt_Reactor_Experiment