The effect of deformation rate (0,1–15 mm/min) on the mechanical properties and strain hardening of wires with diameters of 0,36–2,4 mm made from austenitic-martensitic TRIP steel VNS9-Sh after cold drawing with a degree of deformation of 31,5–86 % was investigated. It was established that the volume fraction of martensite increases linearly from 15 to 57 %. The ultimate tensile strength of wires with diameter of 0,36 and 2,4 mm reaches 2520 and 1758 MPa, respectively. According to the determined parameters of the Johnson–Cook model, VNS9-Sh steel wire is practically not susceptible to strain hardening.

Removal of model masses from ceramic shell molds is one of the most difficult technological operations in the production of gas turbine engine parts using the lost-wax method. This review focuses on the potential of using dielectric (microwave) heating as a promising method for removing models. Unlike traditional methods, this approach eliminates the necessity of a heat transfer medium, as the heat is generated directly within the ceramic mold. The second part of the review explores experimental work in this area.

Specialized software packages allow for the simulation of various plastic processing operations. Calculations are performed taking into account the properties of the deformed and tooling materials, as well as varying the process parameters of the deformation processes. This makes it possible to evaluate the manufacturability of various manufacturing schemes for deformed semi-finished products by analyzing various parameters, such as deformation, forces, temperature ranges, and others. This reduces the costs of direct experiments and the development of deformation technologies.

The paper compares laser and argon-arc cladding for aluminum alloy AD33. Weldability was studied, then a suitable filler material was selected for cladding. Following non-destructive tomographic testing were tested welding modes, providing defect-free cladding. A comparative analysis of the welding thermal cycle on the microstructure and microhardness distribution in the cross-section of cladded samples from AD33 aluminum revealed the superior performance of laser cladding over argon-arc cladding.

This article presents the results of a study of the structure, mechanical properties and fatigue resistance of forged specimens made of VT23M titanium (α + β)-alloy, manufactured under pilot production conditions after heat treatment using a double-annealing regime. Based on the results of fracture studies, the features of the alloy fatigue fracture process have been clarified by fracture analysis. A comparative analysis was conducted of the fatigue resistance parameters of the VT23M alloy and similar alloys based on chemical composition and application.

This article presents the results of a research aimed at developing a technological process for bonding polymeric composite materials with low surface energy using modern surface preparation methods. It is shown that using an optimal surface treatment method for PKM before bonding (chemical treatment or atmospheric pressure plasma), results in a significant increase in strength of adhesive joints at temperatures up to 150 °C compared to the untreated surface and to the mechanically processed surface.

The effect of various storage conditions on the properties of the carbon fiber prepreg VKU-74 based on a heat-resistant melt bismaleimide binder and equal-strength carbon fabric was studied. The assessment of the physical and mechanical characteristics of carbon fiber VKU-74 samples made from prepreg after storage under various conditions. Based on the results of the conducted research, the warranty period for storing prepreg in a room at a temperature of 20±5 °С, in a refrigerator at 0÷5 °С, and in a freezer at –18±5 °С has been established.

Durability variations were determined for VKU-39/VTkU-2.200 carbon fiber composites manufactured under different pressures and resin contents, as well as KMKS fiberglass in six filler and binder variations. Based on interlaminar shear test results at various loading rates, a thermal activation analysis was performed, which allowed to assess changes in durability and thermodynamic strength parameter depending on the material composition and manufacturing technology.

The article presents the results of a study examining the influence of the nature and concentration of wetting and dispersing additives on the rheological properties of model ceramic composites based on (meth)acrylate resin and alumina. The influence of the mass fraction of alumina on the rheology of the ceramic composites is presented. A sedimentation-stable, highly filled ceramic paste with an alumina particle content of 85.0 wt.% and a dynamic viscosity of 10–100 Pa·s in the shear rate range of 20–100 s⁻¹ at a temperature of 25 °C was obtained.

The review systematizes recent advances in spark plasma sintering of polymer composites (2020–2026) with classification based on the functional role of the polymer. Record-breaking performance is summarized, including tribological (friction coefficient 0,042), mechanical (compressive strength 182 MPa), electrical (conductivity 0,164 S/cm), and biological properties. Sintering mechanisms are discussed with emphasis on the dual role of pressure, crystallization kinetics, and adhesive interlayers. Prospects for applications in aerospace, medical, and construction industries are outlined.

The effect of the chemical nature of the modifier and its concentration in a polyester film-forming agent on the wear resistance, gloss, and roughness of varnish coatings was studied. The adhesion, physical and mechanical properties (flexural resilience, impact strength), roughness, and gloss of the coating (in the initial state and after abrasion for 7000 cycles) were examined. The optimal modifiers and their ratio with the polyester were determined to obtain a coating with the required combination of properties.

This paper provides an analysis of the main thermal spraying methods used to apply protective and hardening coatings based on metal powder composites. The advantages and disadvantages of various thermal spraying methods are discussed, as well as the key physical conditions and characteristics of the resulting coatings. It is shown that the most optimal thermal spraying method for applying the coating application must be selected based on a compromise between the required quality and process productivity.

A comparative analysis is presented regarding the synthesis methods and physicochemical properties of activated carbons and highly conductive carbon black derived from renewable biomass (rice husks, sodium lignosulfonate) and pulp and paper industry waste. It is demonstrated that activation with potassium hydroxide, carbonate, or bicarbonate yields carbons with specific surface areas of up to 3050 m²/g, suitable for use as electrode materials in supercapacitors. The potential for using highly conductive carbon black in electrically conductive coatings and as a reinforcing filler for tires and filled plastics is also highlighted.

The influence of loading frequency, dwell time at the maximum load, and block loading on fatigue crack growth kinetics in VT8-1 titanium alloy room temperature is examined. Diagrams were obtained, showing the dependence of crack growth rate da/dN on the stress intensity factor (ΔK) for a sinusoidal cycle (5–50 Hz), a trapezoidal cycle with dwell time (30–300 s), and block loading (quantity of cycles in a block 240–480). It was shown that in the stable crack growth region, an increase in the time component of the cycle and in the block duration leads to a decrease in the crack growth rate. The level of statistical scatter was determined from repeated tests.

Certified reference materials (CRMs) of titanium grades VT1-0 and VT1-00, as well as of titanium alloys VT6, VT6ch, OT4-0, OT4-1, and OT4 have been developed. A batch of CRM material has been manufactured. Homogeneity studies and stability studies of the CRM material have been carried out using the accelerated aging method. The certified values of the CRMs and the relative error of the certified values have been determined. The CRM material has been tested for type approval, and the CRM types have been approved. A test program for serial production of CRMs of titanium and titanium alloys has been developed.

This article proposes a new method for determining the area of adhesive contact during the testing of samples using the modified pull-out method. The obtained values of adhesive strength between the Russian carbon fiber UMT42S-3K and the epoxy binder VSE-30 using the improved pull-out method were compared with the values obtained using the reference pull-out and push-out methods. The article also presents the areas of adhesive contact after testing using the push-out method.