Analysis of the structure of VT6 alloy samples after electroexplosive carboborization showed the formation of a hardening zone with a highly developed relief up to 50 microns thick, heterogeneous in thickness, elemental composition and structural-phase state. Subsequent electron-beam processing leads to a decrease in surface roughness and a more uniform distribution of alloying elements. The thickness of the hardening zone increases to 60 microns.

Analysis of the structure of VT6 alloy samples after electroexplosive carboborization showed the formation of a hardening zone with a highly developed relief up to 50 microns thick, heterogeneous in thickness, elemental composition and structural-phase state. Subsequent electron-beam processing leads to a decrease in surface roughness and a more uniform distribution of alloying elements. The thickness of the hardening zone increases to 60 microns.

The paper presents a comparative assessment of the thermodynamic properties(∆_rH°(T), ∆_rG°(T)) of thermite reactions with aluminum and titanium in the metal oxide – aluminum and metal oxide – titanium systems under standard conditions. Iron, manganese, silicon and chromium oxides were taken as components of the reactions for calculating the thermodynamic properties. The thermodynamic analysis of 6 reactions with aluminum and 30 reactions with titanium was carried out. It follows from the calculations that all the reactions considered are thermodynamically probable. However, the reactions of both aluminum and titanium with iron oxides are the most likely to occur and, accordingly, the greatest heat release, the least likely to occur and, accordingly, heat release are observed during the reduction of silicon oxide. Reactions with manganese and chromium oxides occupy an intermediate place. In terms of reducing ability, titanium is not inferior to aluminum, and in the case of a reaction with iron oxides, it even surpasses it, especially in the temperature range of more than 2000 K. The enthalpy of reactions of reduction of iron oxides by titanium are in the same range of values as the enthalpy of reactions of reduction by aluminum (from –450 to –400 kJ). The thermodynamic analysis has shown that the use of titanium as a reducing agent in thermite welding is quite acceptable along with aluminum.

Structure-phase state of 100-meter differentially quenched rails at different depth up to 10 mm in rail head along the central axis and fillet symmetry axis in initial state and after different time periods of extreme long-term operation (passed tonnage of 691.8; 1411 and 1770 million. gross tons) has been studied using methods of transmission electron diffraction microscopy. Significant transformation of structural-phase state of lamellar pearlite grains is noted, accompanied by destruction of cementite plates by cutting them with moving dislocations and by dissolving with carbon withdrawal from the cementite lattice at dislocation lines, low-angle and high-angle boundaries. Formation of a subgrain structure containing nanosize cementite particles located at joints and along the boundaries of subgrains was revealed. Gradient character of scalar and excess density of dislocations along the section of the rail head is revealed.

Mechanical tests of non-ferrous metals were carried out: aluminum (Al) of the A85 grade, titanium (Ti) of the ВT1-0 grade, lead (Pb) of the C2 grade. The creep flow processes of these metals are investigated. The characteristic curves of the process for each non-ferrous metal are obtained. The creep rates of aluminum, titanium, and lead were analyzed.

Mechanical tests of non-ferrous metals were carried out: aluminum (Al) of the A85 grade, titanium (Ti) of the ВT1-0 grade, lead (Pb) of the C2 grade. The creep flow processes of these metals are investigated. The characteristic curves of the process for each non-ferrous metal are obtained. The creep rates of aluminum, titanium, and lead were analyzed.

Mechanical tests of non-ferrous metals were carried out: aluminum (Al) of the A85 grade, titanium (Ti) of the ВT1-0 grade, lead (Pb) of the C2 grade. The creep flow processes of these metals are investigated. The characteristic curves of the process for each non-ferrous metal are obtained. The creep rates of aluminum, titanium, and lead were analyzed.

Mechanical tests of non-ferrous metals were carried out: aluminum (Al) of the A85 grade, titanium (Ti) of the ВT1-0 grade, lead (Pb) of the C2 grade. The creep flow processes of these metals are investigated. The characteristic curves of the process for each non-ferrous metal are obtained. The creep rates of aluminum, titanium, and lead were analyzed.

Relevance of a coal mine digital twin development for estimation of standard parameters of the development face is indicated. Preliminary results of system performance analysis based on cognitive modeling have been presented in order to improve work safety, reduce unscheduled downtime. An automated system for calculating the "tree" of failures and events with identification of possible risks using computer programs package and assessing system quality by the coefficient of accident probability has been proposed.

To substantiate parameters of ventilation of extraction face of one of the mines (theRaspadskoe coal deposit), residual gas content of 6-6a coal seam has been determined using an integrated method. The method under consideration includes taking coal samples from wells in mine conditions, evaluating in laboratory conditions the rate of methane desorption and reservoir properties of 18 coal cores, numerical modeling of distribution of gas permeability, porosity and pressure of methane in a coal seam.

Modern conditions of social and educational environment development and the success of implementation of ideas of productivity in age-appropriate and professional activities determine technologies for attracting attention to the problems of public health and management of individual and social achievements. The process of theorization of football popularization in social and educational environment is unique and significant in development of culture of self-determination and self-actualization of an individual, cooperation and self-expression in age-appropriate and professional activities. In theorizing of the process of football popularization in social and educational environment, integral, structural and organizational elements (types, problems, models, principles, trends, functions, methods, means, forms, technologies, etc.) are considered. The problems of popularization as an active way of presenting possibilities of involving an individual in the process of socially significant development are revealed through contradictions and inconsistencies. Types of popularization of football in social and educational environment are determined in the author's typology of types of popularization of football. Theorized and refined concepts and typology of models of the process of football popularization in social and educational environment are determined in various planes of socially and professionally demanded knowledge about the nature and role of football as a chosen sport and leisure. Quality of football popularization in social and educational environment is specified through the use of methods, means and forms of football popularization. The highlighted methods, means and forms of football popularization reveal the perspectives of modeling and use of football popularization technology. The value-semantic orientation of the theorization of the process of football popularization is defined in the distinguished principles and functions of football popularization in social and educational environment. Modeling and theorization of productive solutions to problems of football popularization are defined at the technological level in pedagogical technology, at the system-functional level - in the pedagogical conditions of ensuring quality of football popularization.

The article presents a historical description of the biography of an outstanding scientist, metallurgical engineer of Siberia and the USSR, Doctor of Technical Sciences, Professor Yuri Vyacheslavovich Grdina. The article pays attention to the social foundations of the family of Yu. V. Grdina, the influence of the Tomsk scientific environment on the formation of a young specialist. The professional growth of a practical scientist in the field of metal science in various scientific and industrial centers of Tomsk, Krasnoyarsk, Novosibirsk, Novokuznetsk is considered. It is shown that the most complete realization of the scientist's talent begins after entering the media and strengthening ties with the metallurgical industry not only in Kuzbass, but also throughout the Soviet Union. Yu. V. Grdina's professional yurovenu and the results achieved by him in scientific and production activities make him one of the scientists of the All-Union and world levels.