Corrosion studies in Pb-Bi liquid alloy

Corrosion studies in Pb-Bi liquid alloy are necessary for materials selection. At first, we present the R&D programme which has been proposed. The aims of this programme are : 1) basic corrosion studies in static Pb-Bi, 2) corrosion studies in dynamic Pb-Bi, 3) compatibility studies in Pb-Bi containing additional impurities (spallation products), 4) structure protection studies. To carry out the corrosion studies in static Pb-Bi liquid alloy, three experimental devices have been developed. They are : 1) COLIMET (COrrosion LIquid MEtal), to perform experiments with small quantities of eutectic Pb-Bi alloy in reductive atmosphere Ar + H-2, 2) COLIMESTA (COrrosion LIquid MEtal STAtic), for experiments with larger quantities of static eutectic Pb-Bi and in a wide range of oxygen contents measured by oxygen sensor, 3) DECO (DEposition and COrrosion), for experiments in a sealed container with a thermal. gradient under inert atmosphere Ar. The various devices and the experiments planned to be performed are described.