| 摘要 |
PROBLEM TO BE SOLVED: To provide a reactor containment vessel and containment vessel internal structure that keep high corrosion resistance during a normal operation and when an accident or the like occurs.SOLUTION: The reactor containment vessel of the embodiment includes a layer on an inner wall surface. The layer contains at least one selected from a group consisting of Cr, Ni, Al, ZrO, TaO, NbO, TiO, AlO, Zr-Ta complex oxide, Zr-Nb complex oxide, Zr-Al complex oxide, Ta-Nb complex oxide, Ta-Al complex oxide, Nb-Al complex oxide, Zr-Ti complex oxide, Ta-Ti complex oxide, Nb-Ti complex oxide, and Al-Ti complex oxide. The containment vessel internal structure of the embodiment includes a layer on its surface. The layer contains a material similar to that usable for the layer on the inner wall surface of the reactor containment vessel. |
