Abstract
We study the influence of high-temperature aging of 15Kh2MFA steel in a hydrogen-containing medium on its threshold characteristics of cyclic crack resistance depending on the thickness of the specimens. The size effect of the threshold of cyclic crack resistance for a metal in the intact state or subjected to aging in an atmosphere of hydrogen followed by degassing is caused solely by the influence of crack closure. We show that hydrogen adsorbed by the metal ambiguously affects the effective threshold of cyclic crack resistance of the aged metal depending on the thickness of the specimens and the state of the metal.
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Student, O.Z., Nykyforchyn, H.M., Lonyuk, B.P. et al. Specific Features of the Size Effect of the Thresholds of Cyclic Crack Resistance of 15Kh2MFA Steel under the Action of Hydrogen. Materials Science 36, 534–540 (2000). https://doi.org/10.1023/A:1011310021143
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DOI: https://doi.org/10.1023/A:1011310021143