Abstract Structural materials compatibility in conditions relevant to plant operation is of primary importance to safety. The work describes the behaviour of T91 and ferritic ODS steels, 14%Cr and 19%Cr under such conditions. Three-point-bend specimens were pre-stressed up to yield strength, then exposed to flowing lead-bismuth eutectic in a loop at 350° C for 500 and 1000 h, in non-flowing one for 2000 h. The oxygen content was measured to be in the order of 10 −5 wt.%. Post-test examination by means of microhardness and SEM with EDS demonstrated the formation of thin oxides without crack initiation, which is discussed. Because it was not observed either direct contact between the steels and LBE or local high plastic deformation, no LME occurred.

中文翻译：

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暴露于液态铅铋共晶中的预应力 T91 和 ODS 钢的行为

摘要 与工厂运行相关的条件下的结构材料兼容性对安全至关重要。该工作描述了 T91 和铁素体 ODS 钢、14%Cr 和 19%Cr 在这种条件下的行为。三点弯曲试样预应力达到屈服强度，然后在循环中在 350°C 下暴露于流动的铅铋共晶中 500 和 1000 小时，在不流动的情况下暴露 2000 小时。测得氧含量约为10 -5 重量％。通过显微硬度和带有 EDS 的 SEM 进行的测试后检查表明形成了没有裂纹萌生的薄氧化物，对此进行了讨论。因为没有观察到钢和 LBE 之间的直接接触或局部高塑性变形，所以没有发生 LME。