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Information × Registration Number 0211U004779, 0109U007045 , R & D reports Title Development of reversible hydrogen embrittlement model of high-strength low alloy steels taking into account hydrogen-enhanced localized plasticity popup.stage_title Head Ignatenko Oleksii Viktorovich, Registration Date 28-02-2011 Organization E.O.Paton Electric Welding Institute of the National of Sciences of Ukraine popup.description2 Actual analytical study of the hydrogen embrittlement problem for metals with bcc lattice has been carried out. It was advanced of physical and mathematical components of reversible hydrogen embrittlement model for metals with bcc lattice. In the model was take into account a localized plasticity caused by the negative impact of hydrogen concentrated around edge dislocations in dislocation pile-up zones. Computer calculations taking into account influence of hydrogen-enhanced localized plasticity effect has been made. It was shown metal becomes more sensitive to hydrogen embrittlement at grain downsizing, although the absolute value of fracture stress increases. A pilot experiments have been made to verify theoretical model. At qualitative level experimental data confirm calculations results about dependence between a size of grain and sensitivity of metal to hydrogen embrittlement. Product Description popup.authors Синюк Володимир Сергійович popup.nrat_date 2020-04-02 Close