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Information × Registration Number 0219U100358, 0118U100164 , R & D reports Title Physical Metallurgy of the Hydrogen-Resistant Structural Materials and Hydrogen Storage Materials popup.stage_title Head Teus Sergiy M., Кандидат фізико-математичних наук Registration Date 08-02-2019 Organization G. V. Kurdyumov IMPh of the N.A.S.U. popup.description2 The optimal parameters for first principles calculations of fcc iron-hydrogen and fcc nickel-hydrogen structures are determined taking into account the spin-polarization effects. The calculations of the spatial distribution of the electron density of Ti and Ti2H structures with bcc crystal lattices have been carried out. It is shown that the electron density is increased in the vicinity of hydrogen atoms. By the means of amplitude-dependent internal friction measurements it is shown that the entry of hydrogen atoms in titanium has no effect on the angle of the amplitude-dependent part of a curve. Such behavior is a result of dislocation blocking by titanium hydride. The peculiarities of hydrogen absorption by master alloys have been studied that are used for synthesis of titanium alloys from the multicomponent powder mixtures based on the hydrogenated titanium. It is shown that the degree of hydrogen adsorption by master alloys is different and depends on their composition. The effect of complete substitution of titanium iodide by the titanium sponge in Ti-Zr-Mn-V-Cr system and eutectic Ti-Zr-Mn alloy on the structure and phases composition is analyzed. Such substitution has no effect on the structure and phases states of the systems. The system alloy Ti-Zr-Mn-V-Cr consists of big crystals of Laves phase with the small addition bcc solid solution on the grain boundaries. On the system Ti-Zr-Mn, whatever the initial titanium state, the formation of the basement of eutectic colonies and its subsequent grows is typical for the polyhedron-dendrite eutectic. The variation of synthesis conditions on the precipitation of МАХ-phase Ti3AlC2 is studied. It is determined that the addition of 5 wt.% B2O3 to Ti3Al1.1C2 results in the MAX-phase Ti3AlC2 synthesis without prior compaction of initial powders. Product Description popup.authors popup.nrat_date 2020-04-02 Close