Corrosion of Molybdenum-Based and Ni–Mo Alloys in Liquid Bismuth–Lithium Alloy

Bismuth–lithium alloys are considered primary candidates for the reductive extraction step in on-line reprocessing of molten salt reactor fuel. The corrosion behavior molybdenum-based and Hastelloy® B-3 alloy (taken comparison) was examined here a liquid Bi–Li (5 mol.%) at 650 °C. MoW10, MoW30, TZM corrosion-resistant were studied as prospective construction materials holding bismuth–lithium alloy. Rates determined by gravimetric method well chemical analysis products formed liquid-phase microstructure composition samples containing after tests using inductively coupled plasma–atomic emission spectroscopy, X-ray fluorescence analysis, scanning electron microscopy, energy dispersive spectroscopy. corrodes bismuth-lithium due to formation zirconium–bismuth intermetallic compound, which passes into phase. rates °C 16, 23 µm/year, respectively. alloy, despite its high molybdenum content, subjected severe dissolution nickel bismuth. rate this 14 mm/year.