We formulate a mathematical model for the determination of the effect of hydrogen on the period of initiation of creep-fatigue macrocrack in the vicinity of a stress concentrator in a plate. By using this model, we find the period of initiation of a macrocrack for a strip with two side notches under cyclic loads, high temperatures, and the action of hydrogen-containing medium. It is shown that hydrogen increases the rate of crack initiation in steel plates.
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 50, No. 4, pp. 34–40, July–August, 2014.
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Andreikiv, O.E., Dolins’ka, I.Y., Dobrovol’s’ka, L.N. et al. Influence of Hydrogen on the Initiation of Creep-Fatigue Cracks in Plates Near Stress Concentrators. Mater Sci 50, 507–515 (2015). https://doi.org/10.1007/s11003-015-9748-5
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DOI: https://doi.org/10.1007/s11003-015-9748-5