Abstract
A proposed method for preventing corrosion in molten fluoride salts is adding certain reducing impurities that can control the oxidizing impurities. The effectiveness of many potential reducing impurities in preventing corrosion and their effects on mechanical properties of structural materials have not been studied. This work studies the effectiveness of six different reducing impurities on preventing corrosion of Hastelloy N and SS316H in molten LiF-NaF-KF (FLiNaK) at 700 °C. Our results indicate that addition of reducing metals can be effective in controlling the corrosion of alloys depending on the testing conditions but may affect the mechanical behavior of SS316H.
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