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The article provides a review of scientific and technical literature in the field of development of alloys with additions of scandium and zirconium and their use for parts of additive manufacturing. The article describes the character of the influence of scandium and zirconium on the formation of a bimodal structure during synthesis. The factors influencing the formation of hot cracks in synthesized samples are given. The effect of compression on the density, size and ratio of the number of equiaxed and columnar crystallites in the structure, roughness and mechanical properties of synthesized alloys with additions of scandium and zirconium, including alloys with experimental compositions, is shown.

The paper presents the results of studies of the influence of the Zn:Mg ratio on the hardenability, structure and complex of mechanical and corrosive characteristics of forgings with 150 mm thickness made of alloys based on Al–Zn–Mg–Cu system, manufactured in the production conditions of metallurgical plants of JSC AMR and Public Corporation “KUMZ”. It has been determined that an alloy of the Al–Zn–Mg–Cu system with Zn:Mg ratio of not less than 4,1:1 and copper mass content of not more than 1.2% has a higher hardenability compared to the 1933 alloy of standard composition, which ensures homogeneous structure and indicators of mechanical and corrosion properties over the thickness of semi-finished pro-ducts; in metallurgical industry at the stage of manufacturing this allows reducing the residual quenching stresses in massive forgings by means of straightening by reduction in an as-quenched state.

The paper considers the main features of the process of autoclave molding of complex geometric shape parts from plates of medium-strength alloy 1441, combined with aging to the state of T11 heat treatment. The article provides the results of modeling of the autoclave molding process of skin fragments of the lower wing panel made of 1441 alloy, and the temperature-time parameters of this process determined during the research. The paper generalizes the results of examination of mechanical and corrosion characteristics of the fragments of the lower wing panel. The possibility of obtaining high accuracy of geometry of complex shaped elements while ensuring uniformity of characteristics in the entire area of parts is shown.

Based on the results of comparative studies and tests, the article shows the advantages of massive forgings with a reduced level of residual stresses made of 1933sb alloy balanced composition in comparison with similar serial semi-finished products. Massive forgings with a thickness of 100–150 mm from a 1933sb alloy of a balanced composition have a lower (more than 2 times) level of quenching residual stresses with strength characteristics increased (by 30–40 MPa and higher), especially in the direction of transverse in thickness (more than 10 %), the level of elongation and fracture toughness.

The paper considers the issue of durability of hinged-bolt joints under the influence of a corrosive environment. There has been performed the analysis of the stress-strain state of the eyes’ material in the preloaded joints. Possibility of corrosion cracking of the eyes in case of exposure to a corrosive medium has been determined. Experimental confirmation of The destruction of the eyes’ material in a preloaded joint has been confirmed experimentally. The article proposes the development of the testing methodology of structural materials under the prolonged exposure to constant stress and corrosive medium under the conditions of a given deformation.

The synthesis procedure of a thin aluminum-hydrogen film on a silicon substrate is described and its result thoroughly investigated by a number of experimental methods. The reactive sputtering deposition was carried out to obtain a structure containing aluminum hydride. The resulting film has characteristic non-metallic properties, though according to thermal desorption studies its hydrogen content is close to AlH1.1, which is lower than stoichiometric aluminum hydride AlH3. Thermal desorption of hydrogen differs significantly from that of AlH3 powder as it has not one but several peaks. According to transmission electron microscopy the film is mostly amorphous but contains crystalline phase. Our interpretation of the experimental data suggests that some hydride phase microcrystals were formed as the film was deposited, but most hydrogen was stored inside the film without forming a crystalline structure in both bounded and unbounded states. The luminescent properties of the synthesized film are similar to aluminum hydride, and it can be concluded that the amorphous Al-H structure of the synthesized film shows resemblance with AlH3 crystals populated with hydrogen vacancies.