Compatibility of Ferritic/Martensitic Steels With Flowing Lead-Bismuth Eutectic at 450°–550°C and 10⁻⁶ Mass% Dissolved Oxygen

Several ferritic-martensitic steels with 9% nominal chromium content were exposed to flowing lead-bismuth eutectic in the CORRIDA loop. The experiments were performed at 450° and 550°C, at a concentration of dissolved oxygen of the order of 10⁻⁶ mass% and a flow velocity of 2 m/s. The maximum exposure time was 8,000 and 20,000 h at 450° and 550°C, respectively. Corrosion of these materials was analyzed both qualitatively and quantitatively.