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Information × Registration Number 0211U007968, 0109U000407 , R & D reports Title Generalized correlation of nanocrystalline structure and mechanical properties formation in Fe-based alloys during severe plastic deformation popup.stage_title Head Bilots'ky Alecsey Vasilevich, Registration Date 07-12-2011 Organization Faculty of аircraft and space systems NTUU "KPI" popup.description2 In the work the important scientific and technical problem of nanocrystalline structure formation in bcc iron subjected to severe plastic deformation by friction (SPDF) in different gas atmosphere (argon, air, ammonia) was decided on the base of the results of fundamental researches (investigations) by optical microscopy, X-ray diffraction analysis, transmission and scanning electron microscopy and micromechanical testing, including nanoindentation technique. The effect of the structural state changes on the features of diffusion and phases transformations in the indicated conditions, and also on the complex of mechanical properties (Young's modulus, hardness, plasticity characteristic) of material in the nanocrystalline state is generalized. It was found the necessary conditions (temperature, strain and strain rate) to obtain the nanocrystalline structure of bcc Fe alloys during SPD by friction. These results are important both for the current basic research and for application in engineering practice. Product Description popup.authors Гриценко Марина Григорівна Юркова Олександра Іванівна popup.nrat_date 2020-04-02 Close