Fuel rod assembly and method for mitigating the radiation-enhanced corrosion of a zirconium-based component

摘要

There is provided a fuel rod assembly comprising a first component of a zirconium-based material. The first component is in contact with or is located adjacent to a second component of a material different from the zirconium-based material, e.g. a nickel-based or iron-based alloy. A coating is disposed on an outer surface of the first component, which is effective to reduce an electrochemical corrosion potential difference between the first component and the second component relative to an electrochemical corrosion potential difference between the first component and the second component without the coating.

主权项

1. A method for decreasing an amount of radiation-enhanced corrosion within a fuel rod assembly comprising:
applying a metallic coating onto an outer surface of a first component of the fuel rod assembly, wherein the first component comprises a zirconium-based material; wherein the metallic coating reduces an electrochemical corrosion potential difference between the first component and a second component of the fuel rod assembly as compared to an electrochemical corrosion potential difference between the first component and the second component without the metallic coating; and wherein the second component is in contact with or located adjacent to the first component, and wherein the second component comprises a material different from the first component.