The article presents microstructural studies of monocrystalline samples of crystallographic orientation [001] of the intermetallic alloy VIN4M in the cast state, after complete heat treatment and samples that have passed long-term static tests. A fractographic study of samples that have undergone long-term tests at various temperatures and stresses is also presented. The technology of casting blanks of nozzle blades has been developed and a batch of monocrystalline nozzle blade castings made of intermetallic alloy VIN4M with high yield has been obtained in production conditions.

In the article were studied the microstructure, phase composition, and the change in mechanical properties depending on the test temperature of the high-entropy alloy in the NiCoCrWNbAlTiReC system after vacuum induction melting. According to the results of the studies and tests, it was established that the alloy structure consists of a FCC solid solution with excess phases, with the implementation of the mechanism of strain hardening at the test temperature of 20 °C and structural-phase transformations in the temperature range of 900–1100 °C.

The causes of failure of gas turbine engine parts have been identified. The structure and features of destruction have been studied using optical metallography, high-resolution fractography and electron probe analysis. It has been shown that the materials of the parts comply with the requirements of regulatory documentation in terms of structure, hardness and chemical composition. The most probable causes of rolling bearing failure are faults in the oil supply system. The destruction of the gear developed according to the fatigue mechanism from scratches located in the gullet.

The processing of polymer composite materials by methods of non-autoclave molding is increasingly used in the manufacture of products for a wide variety of applications. To carry out the process of manufacturing the material and obtaining its maximum properties, it is necessary to use technological processes that ensure the manufacture of materials with predictable and optimal properties. The review is devoted to the technological features of the manufacture of polymer composite materials by non-autoclave molding of prepregs.

The properties of various types of glass filler are considered. The main characteristics of a molten epoxy binder VSE-1212 are described. Studies of the wettability of quartz filler fibers are presented. Fiberglass samples were examined by ultrasonic inspection. The results of the physico-mechanical and dielectric characteristics of fiberglass of the VPS-48/7781-14 are presented. The results of the research of the developed fiberglass for radio engineering purposes based on quartz filler and molten epoxy binder VSE-1212 are presented.

The results of research of surface tension of melt adhesive binder VSK-14-6 using a processor tensiometer are presented. As a result of measuring the wetting edge angles in test liquids, the calculated values of surface free energies (SFE) of the studied solids (polymer-sotoplastic and carbon fiber UMT42S-3K-EP) were obtained, including after treatment with atmospheric pressure plasma. The obtained SFE values were used to evaluate the wetting ability of the solids and their adhesion to the binder.

The article presents the main principles, methods and techniques for assessing the tightness of fabric-film materials (FMM) and flexible pipelines of air conditioning systems (ACS) of aircraft made of them. The tightness of these products is one of the main requirements and is necessary for the reliable functioning of the ACS. The article presents a method for calculating the tightness indicators during tests using the manometric method, diagrams of a device for monitoring the tightness of the TPM, a stand for testing the tightness of flexible pipelines, and a brief technological process for performing tightness monitoring operations.

The values of linear radiation attenuation coefficients for metal powders for additive technologies and their foundry analogues depending on the anode voltage on the X-ray tube are calculated. Alloys based on iron, nickel, titanium, aluminum and pure metals were considered, and the coefficients were calculated for three values of anode voltage. It has been theoretically established and experimentally confirmed that the GOST 20426‒82 regulations can be used for parts produced by additive technologies.

The results of tests to determine the creep characteristics of aluminum alloy AMg6 under static and cyclic loading at elevated temperatures are presented in the article. Characteristics of static and cyclic creep are necessary to predict residual stresses in a welded structure subjected to vibration during welding. Creep curves under static and cyclic loading are analyzed and compared. The effect of the variable component of the load on creep resistance is estimated using the Larson–Miller equation.