This paper presents the results of scientific and technical research on the compositions and manufacturing technologies of powder compositions for cold spraying on castings of aluminum and magnesium alloys. The conducted research includes investigations by foreign and Russian scientists in the field of technologies for improving the characteristics of alloys through the application of functional coatings, as well as local repair of products. Technologies that do not adversely affect the applied surface and eliminate defects without additional heating are of particular interest.

The selection of the optimal kinetic model of curing of a molten epoxy binder in a prepreg based on an equal-strength carbon fabric is considered step by step. The influence of the process stages and the reaction flow pattern on the coefficient of determination of experimental and calculated dependences is shown. Using the methods of multivariate nonlinear regression, two functional dependencies between factors and response were analyzed according to the Prout–Tompkins and Avrami–Erofeev models. The kinetic parameters of the curing reaction have been refined.

The article provides the results of a comprehensive assessment of the retention of the strength properties of VPS-58 fiberglass under tension, compression and bending in the temperature range of –60 to +80 °C in the initial state and after exposure to operating factors. These factors included exposure in a tropical climate chamber and hygrothermal aging under different conditions for 1 and 3 months, as well as thermal aging for 500, 1000, 1500 and 2000 hours. The influence of mycological environment and automotive fuels and lubricants on the bending strength limit of fiberglass and mass change was studied.

The physical, mechanical, and performance properties, as well as the microstructure, of layered titanium-polymer materials VTPO-1 (with organoplastic) and VTPU-1 (with carbon fiber reinforced plastic) based on the VT23M titanium alloy developed by the Kurchatov Institute National Research Center – VIAM are presented. The research results demonstrate that they possess significant advantages (lower values) of fatigue crack growth rate compared to titanium alloys Ti-64 and VT23M (up to 40 times). Unlike titanium alloys, the fatigue crack growth rate of VTPU-1 initially decreases with increasing stress intensity factor and then approaches steady-state values.

A comparative analysis of physical and technical characteristics of carbon fibers produced from petroleum mesophase pitches and polyacrylonitrile is carried out. The fields of application of pitch carbon fibers are presented. An explanation of some features of the technologies influencing the achievement of unique properties of carbon pitch fibers is presented. An explanation of the reasons for the lower strength of carbon fibers based on mesophase pitches compared to the strength of carbon fibers based on polyacrylonitrile is given. New fields of application of carbon fibers based on carbon pitches are recommended.

The article considers issues related to the technology of manufacturing thick-walled products from layered polymer composite materials (PCM) by layer-by-layer laying of prepregs followed by vacuum-autoclave molding. The influence of debulking modes on changes in PCM thickness, based on shrinkage and moldability, using the method of statistical experimental planning is studied. Based on the results, dependencies were established between the selected factors of the debulking process and the parameters characterizing changes in the thickness of PCM.

Due to their increasing use in a wide variety of industries, primarily civil ones, polymer composite materials processed using non-autoclave molding are becoming increasingly popular due to their low cost and simple equipment. A current application of polymer composite materials is the manufacture of rehabilitation equipment for the disabled and, in particular, components of everyday and running foot modules, which are currently manufactured using imported materials.

A brief scientific and technical literature review is presented in the field of application of metal composite materials (MMCs) in manufacturing of internal combustion engines, in particular, design and manufacturing of pistons. Methods for producing MMCs with various reinforcing components are described. The test results for MMCs and pistons made from them are shown. The results of work on manufacturing of piston blanks from MMCs at the National Research Center “Kurchatov Institute” – VIAM are presented.

This paper presents the results of experimental studies of thermal control paint coatings based on polymethylhydridesiloxanes. The influence of various modifying additives on the properties of the obtained coatings is demonstrated. It was determined that the introduction of rare-earth element chelates has a positive effect on the properties of the obtained coatings, namely: it minimizes the mass loss at 200 °C, increases the degree of curing of coatings and reduces the content of condensable volatile substances.

The influence of various values of the asymmetry coefficient of the loading cycle R (–1 to 0,9) in determining the minimum and maximum values of the bending moment during loading based on N = 10⁶ cycles at which fracture occurs has been studied. It was revealed that the change in R values from –1 to 0,7 do not lead to a change in the fracture structure in the zone of fatigue crack development. At R equal to 0,8 and 0,9, fatigue failure occurs with the formation of chip facets. In the α- and β-phases, the residual macro- and micro-deformations of the crystal lattice increase with increasing values of R and maximum stresses.

The possibility of separate eddy current control of the properties of intermetallic TiAl alloy parts obtained using additive technologies is analyzed. The calculation of the signal change was carried out using the developed mathematical model for cases of changes in the electrical conductivity of only the surface layer, only the substrate, and the entire control object. It is established that in order to achieve the necessary stability of solving the system of equations for obtaining depth properties, the lower frequency should be less than 300 kHz, and the high frequency should be more than 600 kHz.

The article demonstrates the necessity of developing a methodology for complex testing of aircraft anticorrosive protection systems, which considers the impact of the climatic factors, alongside with the microbiological and operational ones. The latter negatively affect the anticorrosive protection system, which can lead to its destruction, and, consequently to, the development of corrosion damage. The framework of this methodology has been determined, as well as test program required for its development has been created.

The article describes processes of surface moistening and moisture sorption with a polymer material using known physical dependencies. Moisture saturation depends on size of pores, surface contact angle (polymer hydrophilicity), temperature and pressure. It is shown that moisture saturation leads to the formation of a moisture content gradient and gradual destruction, cracking, aging and discoloration of the polymer from the surface due to tensile stresses in the presence of a moisture gradient between the surface and inner layers of the polymer material.