механічні властивості

Physical bases of creation of frame metal-ceramic composites with submicron grain for maintenance of extremely high ballistic characteristics

On the base of the results determined by using modern physical material science methods scientific principles referred to relationships of structure, phase composition, physical and mechanical properties formation of frame metal-ceramic composites based on tungsten carbide with a multicomponent high-entropy alloy (HEA) binder during high-speed electron-beam and induction sintering has been developed for the first time and will play an important role in deepening the understanding of the processes of structure formation in dispersed heterogeneous systems.

Creation of methods for plastic shaping of structures from a new welding alloy of the Al - Mg - Transition metals - Rare earth elements system with high mechanical properties for aerospace engineering

Methods have been developed to ensure high mechanical properties during plastic forming of structures of a new welding alloy of the Al - Mg- Transition Metals - Rare earth elements system for aerospace engineering. A two-stage approach to deformation has been developed, when at the first stage deformation is performed under conditions of large shear deformations for a more uniform redistribution of phase components and a decrease in the size of the grains - homogenization of the material due to mechanical action, and at the second stage - the formation of the structure.

Creation of breakthrough technologies for manufacturing components of irregular shape from composite materials for extreme operating conditions

The fundamentals of non-trivial additive technologies of 3D-printing and cold spraying (CS) for the manufacture of complex-shaped products from cermet and ceramic composites, as well as from multicomponent metal alloys, which are fundamentally different from existing analogs of costly foundry methods ensure the level of material properties required for their operation at temperatures above 600 °C, under conditions of high-speed multiple heating-cooling (1500 deg/min), cyclic loading and in an aggressive oxidizing environment.

Creation of methods for designing the processes of shaping engineering structures under viscoplastic deformation of homogeneous, eutectic strengthened and powder materials

In this work, using a unified theoretical approach, the analysis of the processes of visco-plastic forming of typical mechanical engineering structures with homogeneous and structurally heterogeneous materials. The theoretical approach is based on a closed system of equations of the theory of plastic flow of continuum mechanics, taking into account the visco-plastic properties of materials. This approach made it possible to provide system design of structural forming processes.

Regularities of quasihydrostatic compression influence on structure and mechanical properties of crystalline metal-like substances and quasicrystalline metallic materials

For the first time physical representations and theoretical assumptions about the regularities of the influence of quasi-hydrostatic compression, as the most stringent conditions of deformation, on the composition, phase transformations, structure, strength and plastic properties of crystalline metal-like and quasicrystalline metal phases, including titanium hydride with a high hydrogen content and Al-Fe-Cr alloy with finely dispersed particles of quasicrystalline phases.

Technological features of prognostication of properties of fusions and structure of metal of foundings for work in extreme terms

Performed a comprehensive study of the casting, mechanical and special properties of heat-resistant and wear-resistant iron-based alloys in a wide range of chromium concentration, manganese, aluminum, carbon, titanium, and so on, are designed latest heat-resistant and wear-resistant alloys, depending on the specific operating conditions of the cast parts in extreme conditions . It created a database covering more than 600 brands of iron-based alloys, ferro alloys and all existing brands of steel and iron scrap.

Scientific and technological basis of receipt of modern technologies and riggin of complex resource saving deformation of axisymmetrical wares

We solve important scientific and technical challenge associated with creating the concept of complex (simultaneous) actions on the workpiece through the formation of localized deformation and the formation of the center hole with minimal post processing of removing the metal layer, and providing enhanced mechanical properties through modification material structure; development of new energy efficient technologies for parts of the central cavity of the solid components; the creation of methods of technological calculations; energy-power research and computer modeling developed processes an