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Information × Registration Number 0213U002895, 0107U009635 , R & D reports Title Low-temperature phase transitions in iron-based solid solutions and their role in physical properties formation popup.stage_title Head Gavriljuk Valentin Gennadievich, Доктор технічних наук Registration Date 13-02-2013 Organization Institute for metal physics NAS Ukkraine popup.description2 Isothermal martensitic transformation under deep cryogenic treatment of the instrumental steel and martensitic transformation in iron based fcc alloys caused by hydrogen were studied. It was ascertained that isothermal martensitic transformations in the temperature range between -100 and -170 С occurred under conditions of immobility of carbon atoms. Low-temperature carbide absence and the following delay in precipitation of special carbides are responsible for the influence of the cryogenic treatment on the mechanical properties. The study of the martensitic transformations caused by hydrogen in austenitic steels revealed that hydrogen induced -martensite promotes increase in resistance of austenitic steels to hydrogen embrittlement. Thus -martensite is not the cause of hydrogen brittleness. The energy of interatomic bonds of hydrogen with iron atoms and with alloying elements was determined by means of ab initio calculations of the electronic structure of the iron based solid solutions. Product Description popup.authors Мовчан Денис Миколайович Могильний Георгій Сергійович Петров Юрій Миколайович Сірош Віталій Олександрович Скоблік Олександр Петрович Тарусин Євген Валентинович Теус Сергій Миронович Тищенко Андрій Іванович Шиванюк Владислав Миколайович popup.nrat_date 2020-04-02 Close