Methods for the Evaluation of Fracture and Strength of Pipeline Steels and Structures Under the Action of Working Media. Part 2. Influence of Hydrogen-Containing Media

摘要

We generalize contemporary methods used for the evaluation of the strength and fracture hazard of elements of pipeline structures by using the approaches of fracture mechanics of materials with regard for the specific features of the influence of hydrogen-containing media. We develop the methods and determine the characteristic values of hydrogen concentration in the metal depending on the applied stresses and physicochemical conditions of hydrogenation. On this basis, new methods are proposed for the evaluation of the strength of pipeline steels under the action of working hydrogen-containing media.