Published in Inorganic Materials: Applied Research
The method of production of group IV powders for additive manufacturing is presented. Powders are produced in the hydrogenation-dehydrogenation process followed by plasma spheroidization of prepared polygonal powders. The dependence of composition of hydrides on amount of absorbed hydrogen is established for the group IV metals; it allows optimizin...
Published in Inorganic Materials: Applied Research
The possibility of simulation of pulsed heat exposure on the surface of Ta coating by low-energy cyclic laser irradiation is considered. In is shown that, at a sufficiently small time interval between the laser pulses, the efficiency of laser radiation absorption by the surface is increased permanently owing to the rise in surface temperature and f...
Published in Inorganic Materials: Applied Research
By X-ray diffraction and transmission diffraction electron microscopy methods, the phase composition, macro- and microstresses, and microstructure in a Ti1–xAlxN coating and a substrate were investigated. The coatings were deposited by magnetron sputtering of a Ti–Al target in an Ar + N gas reaction mixture on a substrate of austenitic steel 12Kh18...
Published in Inorganic Materials: Applied Research
By metallography and optical interferometry methods, the structure of 09G2S steel cutting seams fabricated with the use of narrow jet plasma technology is analyzed. The high quality of the seams allows welding without the removal of the heat-affected zones. The application of the new narrow jet plasma cutting technology provides high-quality weldin...
Published in Inorganic Materials: Applied Research
Magnetically hard Fe–Cr–Co alloys doped with molybdenum and tungsten are prepared using powder metallurgy technology. It is found that chromium evaporation from the specimen surface occurs during sintering, which results in mass losses and nonuniform chemical composition and has a negative impact on the functional properties of the sintered materia...
Published in Inorganic Materials: Applied Research
The ability to separate titanium and silicon oxides under plasma arc reduction melting of the leucoxene concentrate of the Yareg deposit is investigated. The results of thermodynamic calculations of optimal conditions of the process and the experimental data on the product composition and the process power inputs are presented.
Published in Inorganic Materials: Applied Research
The method of modification of the outer surface of the cladding of fuel elements from E110 Zr alloy by means of irradiation with a radial beam of Ar+ ions with a broad energy spectrum is proposed. It is shown that the use of ion beam treatment at the final stage of the cladding production can improve the surface quality owing to removal of a large ...
Published in Inorganic Materials: Applied Research
The tribological properties of composite coatings produced via the plasma-powder surfacing on a steel substrate are investigated. SnSb8Cu4 Babbitt alloy powder and composite pellets on its basis containing carbon nanotubes are used as fillers. The changes in the coefficient of friction, dispersion parameter, and wear rate are studied for deposited ...
Published in Inorganic Materials: Applied Research
The thermal analysis technique of estimating the ability of a melt to overcool is used to determine the optimum technological regimes of melt preparation in all the production stages of amorphous wires. The temperature range of high-temperature melt homogenization and the regimes of precursor extraction and melting are defined for the model Co69Fe4...
Published in Inorganic Materials: Applied Research
The effect of a high-power pulsed flow of deuterium ions and deuterium plasma generated in a plasma focus setup on the surface structure of a Ti plate was investigated. It was established that, depending on the radiation-thermal conditions on the surface, three zones with different surface morphology, structure, and defects were formed in the surfa...
