[2C01-03] Corrosion

[2C02] Radiation effects of ADS target window material of SS316L on liquid metal corrosion

*Nariaki Okubo¹, Yuki Fujimura¹, Akane Kitamura¹, Yasuki Okuno¹, Keietsu Kondo¹ (1. Japan Atomic Energy Agency)

Keywords:Partitioning and transmutation, Accelerator driven system, SS316L, Ion irradiation, liquid metal corrosion

Accelerator driven system (ADS) adopts liquid lead bismuth eutectic (LBE) for both the spallation target and coolant for the non-critical core. Irradiation effects of steel materials of SS316L on the corrosion in LBE were estimated in this report. After 20 dpa iron-ion irradiation for SS316L steels at 450 deg. C, immersion in LBE bath was conducted at 450 C about 400 hrs under reduction oxygen concentration. Cross sectional EDS analysis of irradiated region shew definitely the outflow of iron, chromium and nickel on the steel surface.