STAGNANT Pb - Bi CORROSION EXPERIMENT FOR HYPER MATERIALS

HYPER (HYbrid Power Extraction Reactor) is the accelerator-driven transmutation system developed by KAERI (Korea Atomic Energy Research Institute). HYPER is designed to transmute long-lived transuranic actinides and fission products such as Tc and I. HYPER adopts a fast neutron system and Pb-Bi is used as core coolant and target material. Pb-Bi corrosion is one of the main factors considered to set the upper limits of temperature and velocity. Therefore, KAERI planned Pb-Bi corrosion experiments, and a stagnant Pb-Bi corrosion experiment was performed for HYPER structure materials as the first step. The experiment was performed under the oxygen-controlled atmosphere. * This work has been supported by the Korea Ministry of Science and Technology (MOST).