| abstract |
PROBLEM TO BE SOLVED: To provide a nuclear plant constituent member that effectively suppresses the attachment of a radionuclide. A first agent containing iron (II) ions generated by dissolving metallic iron with formic acid, a second agent for oxidizing iron (II) ions to iron (III) ions (for example, , Hydrogen peroxide) and a third agent (for example, hydrazine) for adjusting the pH, which is generated to contain iron (II) ions and the second agent, and the pH is 5.5 to 9.0. The adjusted treatment liquid is brought into contact with the surface of the metal member constituting the nuclear power plant, and a ferrite film is formed on the surface of the metal member at 20 ° C. to 200 ° C. As a result, a nuclear plant component having a ferrite film formed on the surface is obtained. [Selection] Figure 1 |