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Information × Registration Number 0217U006692, 0115U000117 , R & D reports Title Establishing of hydrogen concentration effect in metal on the strength and serviceability of low-alloyed steels under conditions of static and cyclic loading in hydrogen contained environments popup.stage_title Head Dmytrakh Ihor, Доктор технічних наук Registration Date 27-12-2017 Organization Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine popup.description2 The existence of some characteristic value of the hydrogen concentration at which the mechanism of hydrogen influence changes, namely: below this value the enhanced plasticity (decreasing of the yield stress value) takes places and above - the hydrogen embrittlement occurs, was found. The ambiguous relationship between fatigue crack growth rate and hydrogen concentration CH in the bulk of steel under cyclic loading of the ferrite-pearlite low-alloyed steel in hydrogen-contained environments has been found: there is a certain CH value at which the crack growth resistance of steel increases. The key importance of the determining of such threshold hydrogen concentration value, which correspond the transition "enhanced plasticity - embrittlement" was shown. These values can be considered as the important engineering parameters for strength and fracture assessment of materials and structural components in hydrogenous environments. Product Description popup.authors Барна Роман Андрійович Вовк Роман Іванович Дорош Мар'ян Іванович Лещак Ростислав Любомирович Сиротюк Андрій Михайлович Стащук Микола Григорович popup.nrat_date 2020-04-02 Close