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Information × Registration Number 0217U004989, 0115U000445 , R & D reports Title Regularities of quasihydrostatic compression influence on structure and mechanical properties of crystalline metal-like substances and quasicrystalline metallic materials popup.stage_title Head Yurkova Alexandra Ivanovna, Registration Date 06-12-2017 Organization Faculty of аircraft and space systems NTUU "KPI" popup.description2 On the base of the results determined by using the complex of modern physical material science methods scientific principles and theoretical positions concerning the regularities of structure evolution, phase transformation, deformation mechanisms, the formation of mechanical properties, temperature-concentration intervals of existence of crystalline metal-like and quasicrystalline metal phases, including the superstochiometric titanium hydride, and composite Al-Fe-Cr alloy with ultra fine particles of metastable quasicrystalline phases obtained by consolidation under quasi-hydrostatic compression at room temperature have been developed for the first time. Furthermore, characteristic features of deformation substructure and composition of these materials depending on the operating pressure have been found. The scientific principles for control of composition, phase and structural transformations, the level of characteristics of strength and ductility of crystalline metal-like and quasicrystalline metallic, including the superstechyometric titanium hydride and the composite alloy of aluminum with ultra fine particles of quasicrystalline phases, have been justified during optimization of processing parameters under quasi-hydrostatic compression conditions for the creation of promising competitive structural hydride materials with high content of hydrogen for protection against ionization and neutron irradiation and composite quasicrystalline materials for light engineering structures and prediction of their behavior in terms of product manufacturing and operation. This is thought to be scientific and technical foundation for improvement of technological processes as well as for design of novel technical approaches for production of high-quality hydride materials and quasicrystalline Al-based alloys used at elevated temperatures, making them competitive all around the world. For the first time in the world practice, the possibility of consolidation of titanium hydride and aluminum composite quasicrystalline powders in conditions of quasi-hydrostatic compression at room temperature as to retain high hydrogen content in titanium hydride without the use of protective membranes when stored bioactive properties from radiation and neutron irradiation, and the retention of the quasicrystalline phase in the Al-Fe-Cr alloy to achieve its higher strength while maintaining sufficient plasticity in comparison with the existing world analogues. Product Description popup.authors Бірюкович Ліна Олегівна Биба Євген Георгійович Бякова Олександра Вікторівна Власов Андрій Олексійович Мільман Юлій Вікторович Чернявський Вадим Вікторович popup.nrat_date 2020-04-02 Close