Metallographic and durometric studies and wear tests under dry sliding friction conditions of maraging steel 21NKMT after various types of heat treatment were carried out. It has been established that the samples after quenching and single aging have the lowest wear rate, while the samples after two-times aging have the highest hardness of 630 HV. The use of two-fold aging and overaging of 21NKMT steel leads to an increase in wear intensity by 12–33%.

The results of the study of the effect of sulfur, phosphorus, silicon and nitrogen impurities on the main properties of the high-temperature nickel alloy VZhM200 for blades casting with a directional structure of the PD-8 gas turbine engine: long-term, fatigue strength and short-term mechanical properties are presented. It was found that with an increased content of these impurities in the alloy, the time to destruction decreases at T = 1000 °C at bases of 100, 500 h and plasticity at T = 20 °C. It was also found that the number of cycles to failure was reduced when tested for high-cycle fatigue at T = 900 °C in the alloy with the addition of silicon and nitrogen.

The paper describes the process of creating a rheological model of aluminum alloy 1163, intended for use in software packages for modeling metal forming processes. The flow stress curves of the alloy depending on the temperature and strain rate were obtained experimentally. Using the empirical Hensel-Spittel model, the coefficients determining the dependence of the flow stress on the thermomechanical parameters were calculated. The resulting model ensures high convergence of the calculated and experimental data.

The article presents and summarizes the test results of the mechanical properties of material of industrial sheets with a thickness of 2,0 mm made of heat-resistant titanium alloy VT41. The results of tensile tests, low- and high-cycle fatigue tests of flat samples are presented as well as the results of tensile testing of samples with a corset shape of the working part at different loading speeds. On the base of tests results a stress-cycles to failure curve is  constructed in the areas of static, re-static, low-cycle and classical high-cycle destruction.

The dependences of the mechanical and thermophysical characteristics in samples with different ratios of polyetheretherketone (PEEK) and liquid crystalline polymers (LCP), synthesized by layer-by-layer filament deposition, are shown. It has been shown for certain concentrations, adding LCP to PEEK can increase the mechanical characteristics compared to the material synthesized by FDM from unfilled PEEK. The presence of fibrils and coaxial shells between the layers of 3D-synthesized organic composite plastic and inside the threads themselves is shown. A relationship has been proposed between the microstructure of samples synthesized by FDM and their mechanical properties.

The results of the development and research of fiberglass for structural purposes for the manufacture of interior design elements of helicopters  are presented. A comparative analysis was carried out with previously developed and used materials, including a foreign analogue. It is shown that the developed materials meet modern requirements for fire safety, and due to the use of an epoxy melt binder they provide increased manufacturability and achieve a high level of elastic and strength characteristics. The possibility of improving the developed material to meet the requirements in terms of fire safety imposed on the interior materials of aircraft of the transport category is shown.

The article describes the results of research (physical, fire and thermophysical) properties of the flame retardant material based on fluorosiloxane rubber with different systems of functional additives. The work is aimed at extending the temperature range (up to 200 °С) of fire retardant materials operation, in environments that allow contact with fuel. Research confirms the efficiency of phosphate-nitrogen intumescent system, due to the formation of a durable protective carbon backbone under the influence of high temperatures, preventing the spread of fire.

The influence of ambient temperature and humidity on the curing rate of putty based on unsaturated polyester resin (epoxy vinyl ether) was studied: the viability of the putty after mixing with a hardener and accelerator, the drying time to degree 3 of the putty coating was investigated. The physical and mechanical properties of the putty coating during curing under various temperature and humidity conditions have been determined. The optimal temperature and humidity (when working in open areas) were determined during the curing of coatings based on epoxy vinyl ether putty.

Carbon fiber reinforced plastic (CFRP) KMKU-2m.120, protected by fluoroepoxide VE-46 and acrylic AC-1115 coatings, was exposed to natural weathering conditions in the moderately warm climate of Gelendzhik for 8 and 13 years of exposure. The moisture transfer kinetics in aged CFRP is studied. Fick and Langmuir one-dimensional and three-dimensional models were used to fit the experimental data:  the relative change in the mass of samples of different shapes and sizes. The influence of the coating type and color, duration of natural weathering on moisture content and moisture diffusion coefficients (in-plane and transverse directions) was studied.