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Information × Registration Number 0214U002146, 0111U000887 , R & D reports Title Determination of effective mechanisms of consolidation of nanocrystalline powder materials at hot pressing with heating by pulsed electric current. popup.stage_title Head Laptev Alexander M., Registration Date 22-01-2014 Organization Donbass State Engineering Academy popup.description2 Object of research: the new process of hot pressing of nanocrystalline powder materials with heating by pulsing electric current. The goal of investigation: determination of influence of heating by pulsing electric current on appearance of superplastic effect during pressing and deformation of samples fabricated of nanocrystalline powders. The methods of research: theoretical analysis by finite element method, experimental investigations in an installation for hot pressing with heating by electric current. Theoretical and practical results: the theory and the software for analysis of densification and deformation of the powder materials with nanocrystalline structure during hot pressing with direct heating by electric current were developed on the basis of the study of deformation and consolidation mechanisms. The calculations of the processes of superplastic deformation were curried out and the samples from nanocrystalline materials were pressed or deformed under superplastic conditions. Novelty: the new knowledge about influence of properties of nanocrystalline powder materials on appearance and peculiarities of the supperplasticity effect at hot pressing with direct heating by electric current was obtained. Efficiency of implementation: the performed investigation offers possibility for production of the new bulk articles from nanocrystalline materials at holding of the starting structure and the unique properties. Area of application: materials working by pressure, production of technical ceramics, powder metallurgy, research and development in the field of natural and engineering sciences. Product Description popup.authors Болков Віталій Миколайович Брагіна Яна Юріївна Бузук Ольга Юріївна Григор'єв Олександр Андрійович Дейнека Дмитро Віталійович Лаптєв Олександр Михайлович Ніжмаков Петро Олександрович Пиц Ярослав Євгенійович Рагуля Олександр Миколайович Руденко Наталія Олександрівна popup.nrat_date 2020-04-02 Close