Abstract
We study the possibility of application of electrochemical approaches to the analysis of the engineering state of structural metal materials in the stages of design and long-term operation in hydrogenating corrosive media. It is shown that the analysis of the effect of stresses on the intensity of corrosion processes should take into account the nonstationary electrochemical processes of interaction of the metal with the medium, which serves as a basis for the prediction of corrosion resistance, corrosion-fatigue strength, and cavitation resistance. The influence of the operation factors (service time, absorbed hydrogen, contact corrosion, macroscopic galvanic couples, and bioactive media) on the intensity of corrosion and stress-corrosion fracture of steels is investigated. The possibility of application of the methods of stationary or nonstationary electrochemistry to the prediction of the efficiency of protector and inhibitor protection of steels in loaded structures is demonstrated. The efficiency of the use of some electrochemical characteristics in the evaluation of the in-service degradation of the mechanical properties is substantiated.
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