MOLTEN PHOSPHATE REACTOR FUELS II CORROSION OF METALS IN MOLTEN SODIUM POLYPHOSPHATE

摘要

In connection with a homogeneous-reactor concept being investigated at Atomics International, static, short-term corrosion screening tests of metals in molten sodium polyphosphate were carried out at 700℃.nFor a series of iron-nickel-chromium alloys, the initial corro¬sion rates were found to decrease with increasing nickel content of the alloy. The high molybdenum-content alloys (Hastelloys) and high chromium-content alloys (Inconels) exhibited relatively low corrosion rates. Among the pure metals, platinum, gold, vanadium, molybdenum, and tungsten were inert within limits of detection (<0.02 mg cm-2 hr-1).