Chemical Compatibility of uranium Carbides with Cr-Fe-Ni Alloys

At 1273 K, the principal products in the reaction of uranium carbides with Cr-Fe-Ni alloys are UNiC₂ and the Laves phase U(Fe,Ni,Cr)2. At 973 K, the principal products are UNi₅ and (Cr, Fe)₇C₃. At the lower temperature, reaction with uranium monocarbide is limited by the rate of formation of UNi₅. Liquid formation was observed in the UC Type 316 stainless system at 1292 ± 8 K and at 1351 ± 12 K in the UC Inconel 718 system.