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Information × Registration Number 0216U010043, 0113U004567 , R & D reports Title Development of methods for diagnostics of physical-mechanical properties of the material and resource forecasting of parts on the basis of studying of the regularities of of gradient structure formation under severe plastic deformation popup.stage_title Head Sergiy Firstov, Доктор фізико-математичних наук Registration Date 20-10-2016 Organization I.N.Frantsevich Institute for Problems of Materials Science of NAS of Ukraine popup.description2 Effect of technological parameters on the hardening of surface layer was analyzed by maps of distribution of hardness. Fatigue tests of samples of deformed steel 20X have been carried out. The most dangerous elements from the point of view of fatigue have been detected. It is shown that the presence of a deformation substructure demonstrates positive influence on the resistance to fatigue failure. Effect of deformation on the parameters of static and dynamic wear of steel 20X have been carried out. It is shown that the deformation structure has a positive effect on the wear resistance under static load. Nanograins dramatically improve wear resistance under dynamic loading. For this type of deformation structures the period of wear is up to 5000 hours, which corresponds to one year of continuous operation of a train or 10 years of its operation. Product Description popup.authors Даниленко М.І. Подрезов Ю.М. Рудик М.Д. Фірстов С.О. popup.nrat_date 2020-04-02 Close