The work carried out studies of the microstructure and phase composition of an entropy alloy based on the Ni–Cr–Co alloying system with different ratios of base and alloying elements after vacuum induction melting and subsequent casting into a crucible at a temperature of 200 °C. It has been established that with an equimolar ratio of elements, a solid solution with a higher entropy of mixing is formed, and the introduction of additional alloying elements leads to the formation of carbides and intermetallic compounds.

In this work, high-resolution transmission electron microscopy was used to study features of the structure of the age-hardenable aluminum alloy AlSi10MgCu, produced by selective laser melting, after quenching and artificial aging. Some aspects of the application of Fourier transform to determine the crystal structure of precipitations are described. The identification of crystalline structure of fine particles formed in this alloy during aging has been carried out, and their orientation relations with the matrix have been established.

The influence of the composition of the binder component on the physica-mechanical properties of a flexible low-density heat-sound insulation fibrous material has been studied. The density, flexibility, elasticity, tensile strength, moisture, sorption moisture of experimental samples of flexible low-density heat-sound insulation fibrous materials has been studied. It is determined that experimental samples of flexible, low-density heat-sound insulation fibrous materials are not inferior in terms of properties to native and foreign analogues.

The options of honeycomb filler splicing in the manufacture of aircraft interior panels are considered. Honeycomb panels have been manufactured and tested using various methods of honeycomb splicing to evaluate the variation of mechanical properties. The variation in mechanical properties as well as the effect on the mass of three-layer panels of the interior of aircraft was revealed.

Electroplating coatings of corrosion-resistant steels have been studied to prevent contact corrosion of aluminum alloys: methods of surface preparation have been selected, optimal modes of coating application and heat treatment have been determined. Based on the results of accelerated corrosion tests of structurally similar samples in the salt mist chamber, galvanic coatings of corrosion-resistant steels with high protective ability under conditions of occurrence of a corrosion-resistant steel/aluminum contact pair were determined.

The paper is dedicated to a review of scientific advances in the application of thermal diffusion coatings to protect materials from aggressive environments. Diffusion saturation allows the formation of the desired phase structure in the surface layers of parts by doping with aluminum, boron, chromium, or silicon. Thermal diffusion protective coatings can serve as a replacement for traditionally applied coatings to protect against atmospheric corrosion of steel parts, improve the hardness, wear resistance, and heat resistance of nickel-alloy parts or protect stainless steels from exposure to corrosive media.

The influence of loading frequency on the fatigue life characteristics of a heat-resistant titanium alloy has been studied. Low cycle fatigue (LCF) tests were performed under «severe» loading conditions at temperatures of 20 and 400 °C. High cycle fatigue tests (HCF) were performed under «mild» loading conditions at room temperature. It has been established that the effect of loading frequency on the LCF is the most significant at elevated temperatures. The main difference at a fixed level of loading of the HCF is observed in the interval from 10⁷ cycles. With an increase in the frequency of loading, the durability increases.

The article considers the dependences of the formation of the indicator pattern on the calculated magnetization mode of the object of control and the concentration of magnetic powder. The features of the choice of the magnetization method are described. The magnetic characteristics on which the calculated current depends are determined. Formulas for calculating the set current are given to ensure the required value of the magnetic field on the surface of the controlled part. An illustrative experiment was conducted showing the importance of observing the required concentration of magnetic powder.

The results of research of the influence of the collision speed of the striker with the surface of CFRP on the damage square (interlayer delamination) and residual strength of CFRP are shown. The researches were carried out on the samples of CFRP based on unidirectional and equal-strength (twill weave) reinforcing fillers and epoxy matrix with addition of the thermoplastic dispersed filler, made by method of autoclave molding. The speed of collision was changed by changing the height of falling of the striker of the vertical coper. The area of damage was evaluated by method of ultrasonic control.