Abstract Long-term corrosion behavior of T91 ferritic/martensitic steel in oxygen-doped flowing Pb–Bi eutectic is investigated by exposure for up to 20,000 h at 400 °C, 2 m/s and 2 × 10−7mass% dissolved oxygen. The corrosion phenomena and kinetics of interaction are characterized qualitatively and quantitatively. The steel shows major oxidation resulted in the formation of a bilayer Fe3O4 / Fe(Fe,Cr)2O4 scale. After 20,000 h, the scale thickness averages 12.6 (±2.7) μm. The metal recession due to oxidation does not exceed 5 (±1) μm. Besides oxidation, the localized dissolution of the steel is observed reaching of ∼100 μm in depth after 20,000 h.

中文翻译：

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T91 铁素体/马氏体钢在 400 °C 流动 Pb-Bi 共晶中的长期腐蚀性能，溶解氧为 2 × 10-7mass%

摘要 通过在 400 °C、2 m/s 和 2 × 10−7mass% 溶解氧条件下暴露长达 20,000 小时，研究了 T91 铁素体/马氏体钢在掺氧流动 Pb-Bi 共晶中的长期腐蚀行为。对腐蚀现象和相互作用动力学进行定性和定量表征。钢显示出主要氧化导致双层 Fe3O4 / Fe(Fe,Cr)2O4 氧化皮的形成。20,000 小时后，鳞片厚度平均为 12.6 (±2.7) μm。由于氧化导致的金属衰退不超过 5 (±1) μm。除了氧化之外，观察到钢的局部溶解在 20,000 小时后达到约 100 微米的深度。