Theoretical-experimental approach assesses fatigue crack growth in hydrogen, indicating significant lifetime reduction.
A theoretical-experimental approach for predicting the kinetics of fatigue crack growth and determining the lifetime of the responsible elements of structures in hydrogen is proposed. Based on the created calculation model of fatigue crack growth and experimentally constructed kinetic diagrams of fatigue failure of 35KhN3MFA steel, the residual life of the rotor shaft of the steam generator, weakened by a surface semi-elliptical crack in air and in gaseous hydrogen environment, is determined. It is established that hydrogen reduces the residual life of the rotor shaft by two orders of magnitude in hydrogen, compared to its residual lifee in air.
No takes yet. Share an insight, caveat, or question.
Hembara et al. (2023) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: