Behaviour of pressure-vessel steels exposed to hydrogen from corrosion

摘要

Examples reflecting materials performance under service conditions are used to illustrate the potential deterioration of pressurevessel steels exposed to hydrogen under varying corrosion and stress conditions. The fundamental reactions of hydrogen attack at elevated temperatures and pressures, of hydrogen-induced cracking, and of various types of hydrogen-induced stress corrosion cracking are discussed. Steel selection possibilities, constructional and processing parameters, corrosive-mediuminfluences, and protective measures are presented.