To minimize the lifetime of salt facing components, it is important to understand the material and chemical factors that affect corrosion. Dating back to the MSRE, efforts toward controlling corrosion in molten fluoride salts focused on careful alloy selection, thorough salt purification, and additives for redox control.<br/>This work highlights recent findings showing how controlling salt chemistry affects corrosion in fluoride and chloride salts. New developments in salt purification and redox control additives are shown to have direct and measurable effects on corrosion. Model alloys are used to isolate the effects of alloy composition and microstructure. Spectroscopic techniques are used in conjunction with traditional characterization to measure new salt properties.<br/>This talk will discuss the state of the art, and highlight new progress toward understanding what matters most when controlling corrosion in nuclear and concentrating solar systems that use molten salt coolants.

Alloy corrosion in molten salts: What matters, what doesn't, and what can we do about it?

ACS Fall 2020 Virtual Meeting

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