Presents the results of studies on the microstructure an opposite combination of nickel heat-resistant alloys of a brazed joint. The chemical composition of the phases formed as a result of the interaction of the mono-crystal alloy VKNA-25, heat-resistant alloy EP975 and complex alloyed solder VPr56 was investigated. The main regularities of the microstructure of the brazed joint changes during heat treatment were established. The dependence is established and the formula is derived for obtaining the optimal microstructure of the brazed seam with different duration of heat treatment and the size of the assembly gap.

The rapid rise in prices for charge materials used for smelting heat-resistant nickel alloy and steels leads to a significant rise in the cost of the final product. In order to curb the rise in prices for semi-finished products FSUE «VIAM» together with metallurgical plants of the industry, is carrying out work on testing and introducing new types of charge materials that can replace the currently used high-frequency materials.

The article discussed the materials tested instead of those currently used in the smelting of steels and alloys containing chromium, tungsten and molybdenum, produced at domestic enterprises from domestic raw materials.

Presents the results of work on assessing the corrosion resistance of brazed joints of corrosion-resistant steels used in the manufacture of fuel manifolds for gas turbine engines in a salt spray chamber. The main types of corrosion damage of brazed joints made with brazing alloys of various types (based on copper and nickel) have been identified. The influence of the type of brazing alloy and the grade of the brazed materials on the nature of corrosion damage to brazed joints is determined. Based on the research results, assumptions have been made about the mechanism of occurrence and development of corrosion damage in brazed joints of various materials.

The results of research on the selection of raw materials (ceramic charge, thermoplasticizer) and experimental compositions of the core mass for the manufacture of ceramic rods from fused quartz are presented. The optimal technological parameters were selected and the technology for manufacturing the core mass of experimental compositions was developed. The results of studies of technological parameters for the production of ceramic samples of experimental rod compositions based on fused quartz are presented. According to the results of these studies, the optimal one is selected.

The article provides an overview of high-temperature PCM developed at FSUE «VIAM». To create a new aerospace technology, it is necessary to expand the range and develop advanced modern structural PCM with high strength, reduced porosity and increased thermal-oxidative stability, combined with a high level of mechanical characteristics and their preservation in the widest temperature range. FSUE «VIAM» has many years of experience in the development of this class of PCM – the first work on the creation of PCM with an operating temperature of more than 250 °C was received in the 1970s and is currently ongoing.

Presents the results of experimental studies of the effect of additional apparet on the properties of high-temperature carbon plastic based on a heat-resistant thermosetting phthalonitrile binder and a volume-reinforced woven preform. Comparative data are given on physical and mechanical properties of carbon plastics based on preforms with and without an apparet, including after exposure to operational factors (thermal aging, water and moisture absorption), results of thermal analysis and microstructure research.

The main issues of structural and technological development of flexible pipelines made of polymer composite materials (PCM) of air conditioning systems (ACS) of modern aviation equipment are discussed. The analysis of existing designs of flexible pipelines of ACS from PCM is carried out. The main results of research, samples of flexible pipelines from PCM and the General scheme of the technological process of manufacturing flexible pipelines are shown.

The possibility of using protective screens made of aramid organoplastics to ensure the bird resistance of carbon fiber wing flaps is investigated. Aramid organoplastics were selected for the production of a protective screen, taking into account the main requirements for the materials of external contour of the aircraft wing. The result of impact tests simulating the collision of a bird with carbon fiber flaps that are not protected and protected by organoplastics are presented. The optimal ratio of aramid organoplastics as part of the protective screen for carbon fiber wing flaps is presented.

A transmission shaft is required to transfer power from the engine to the axle and drive wheel in a rear wheel drive vehicle. A composite shaft has many advantages: greater length compared to a metal shaft, improved mechanical properties, less noise, vibration and weight. By adjusting the resin composition and the fiber reinforcement pattern, the mechanical properties of the transmission shaft can be improved. Various options for modifying carbon and fiberglass plastics to improve the characteristics of the shaft are considered.

The assessment of waste generated during the production of high-temperature fiber insulation. A method of waste processing with a minimum number of technological stages is presented. The structure and mechanical characteristics of the obtained material are estimated. Full-scale tests of the material under the influence of high-enthalpy flame flow of propane-oxygen burner were carried out. The resulting material is suitable for the production of furnace linings, heat-resistant substrates and containers, flame screens.

Different detergent compositions for removing contaminants from metal surfaces are considered. Components of detergent compositions and their effect on the properties are described. Examples of promising studies in this area are given, including those related to improving detergent properties, anticorrosion characteristics, fire safety and environmental friendliness. Attention is paid to compositions that provide simultaneous washing and preservation of metal. It is reported to determine effect of detergent compositions on other materials of aircraft.

In the first part of the review, based on the analysis of world experience in conducting climate tests, the main development trends related to the development of new materials are identified, and it is Shown that in parallel with the development of new materials, appropriate methods of climate testing should be developed taking into account previous experience. It is shown that to assess and predict changes in properties of materials over a long operating life tests of materials are required to conduct accelerated methods of building mathematical models of processes of degradation of their properties under the given climatic and operating factors.