Department of material science

Head of the departmentJunior Researcher Anna. P. Zykova

Co-workers: Dr. of Science I.A. Kurzina, М.Yu. Novomeiski, Yu.D. Novomeiski, N.A. Popova, E.L. Nikonenko, M.P. Kalashnikov, A.V. Chumaevsky

The main research areas

  • Development of technologies for the formation of new high-strength, heat resistant and corrosion-resistant metallic materials.
  • Basic and applied research in the field of structural states and phase composition of metal nanomaterials.
  • The physical basis of new technological processes of surface and volumetric hardening materials.
  • Investigation of mechanisms of structural phase transitions in metals under ion implantation.
Nanostructured modifiers for metallic alloys

The studies on the effects of the liquid crystallized alloy, which provide a flow of bulk crystallization of the alloy to produce a fine-grained structure of the alloy in the solid state. Modification ( – relatively cheap, flexible and technologically highly effective method of controlling the structure of crystallized alloy. In the laboratory of catalytic researches are currently being developed and investigated nanostructured modifiers and ligature-based nanopowders d-metal oxides IV and V groups. The structural strength, corrosion properties of alloys, in particular iron and steel, after the introduction of modifiers based on nano d-metal oxides IV and Group V (Nb2O5, TiO2, ZrO2) have been studied. Mechanisms of volumetric hardening of metallic materials are investigated. The developed materials were commercial implementation.
High-strength metallic materials with gradient surface layers on base of the intermetallic particles

Improving the physical and mechanical properties of metallic materials is possible through the formation of the surface layers on base of the nanoscale structural elements. As a result, there is a gradient change in the structural and phase characteristics (concentrations of elements and impurities, the density of defects and their organizations, phase composition, the size of the fragments, subgrains and grains, etc.) as the distance from the surface. One way to improve the strength characteristics of metals is the formation of surface layers consisting of intermetallic compounds, in particular the systems Ni-Al, Ti-Al and Ti-Ni with grains in the nanometer range, formed under the ion implantation. Increase in hardness, wear resistance and heat resistance of metals containing such surface layers, due to unique physical and mechanical properties of intermetallic compounds and phases formed and size effects of phases. An additional source of improved strength characteristics may also be a decrease in grain size of metal matrix methods of severe plastic deformation, and the modifying effect of ion implantation.The studies of the physical mechanisms and regularities of formation of nanostructures under ion irradiation in the surface layers of metallic materials with a gradient of structural-phase state and the high functional properties are curried out. The quantitative dependence of the basic structural, physical and chemical characteristics (layer thickness, density and distribution of elements, the localization of solid solutions and secondary phases, lattice parameter, diffusion coefficients, concentration and type of defects, microhardness, wear and tear) on the synthesis conditions (irradiation) and also nature and structure-phase state of the metal matrix were established. The principles and approaches to the creation of the surface layers of metal materials based on nanoparticle can be used to create new metallic materials and improve industrial metallic materials.