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The effect of irradiation rays on the cathodic process lies in accelerating the cathodic reactions and causing the electrode potential to shift in the positive direction. The specific mechanisms and effects can be divided into three categories: the radiolysis effect. Irradiation causes corrosive substances to decompose, producing oxidizing agents such as oxygen and hydrogen peroxide; the reducing action of these agents directly accelerates the cathodic process, leading to a positive shift in the electrode potential. Irradiation-electrochemical effect: Atoms on the metal surface become more active after absorbing irradiation energy, making them more prone to participating in electrochemical reactions and thereby indirectly accelerating the rate of cathodic processes. Structural effects: Irradiation alters the structure of the metallic phase, creates microscopic defects, undermines the protective properties of the surface oxide layer, reduces the resistance to reaction, and further promotes the cathodic process. The ultimate performance varies among different materials: if the corrosion potential of the passivable metal remains within the passivation region, corrosion does not increase significantly ； If the potential enters the passivation region, the corrosion rate increases significantly ； The corrosion of metals that cannot be passivated is significantly accelerated by irradiation.