Savchuk O. Effect of deformation on structural transformations, mechanical properties and destruction processes of alloys of iron and titanium

The aim of work is research of influence of deformation of certain typical alloys of iron with a carbon, that have the cube and face-centered cube grates centred by volume of, and also commercial titan with the hexagonal densely packed grates, on their crystallography texture, fractal of structure, damaged and establishment of physico - mathematical models of connection them quantitative descriptions with character of destruction. Research object. Processes of forming of crystallography texture, microstructure, its fractal, anisotropy of mechanical descriptions and parameter of damage during a flowage in alloys on the basis of iron and titan. Research methods. X-rayed analysis of texture of crystalline bodies, metallography and fractal analysis, methods of mechanical tests of polycrystalline bodies, computer fractal analysis, computer design. Research results: 1. The found conformities to law of forming of texture and her heterogeneity after a spiral extrusion can be used for development of new technologies, that allow to create in folias an optimal structure that is able to increase durability at kind plasticity. 2. The found conformities to law of influence of the alternating bending on texture and parameter of damaged at further tests on single-axial tensile test of alloy of DC01 (quality low-alloy construction steel) can be used for development of technology of improvement of shape-changes alloy at treatment pressure that is actual in motor industry. 3. Results of research of influence of the alternating bending on texture and anisotropy of mechanical properties and to the parameter of damaged of alloy Х5CrNi18-10 (typical stainless steel), applied in motor-car, oil-processing and canning industry, can be used for the improvement of technology of making of sheet and roll non-rusting. 4. Results of research of influence of the alternating bending and crystallography texture on an anisotropy to the parameter of damaged ? of letters of commercial titan at further monaxonic tests on розтяг can be used for creation of technology of increase of term of exploitation of alloys on the basis of titan. 5. The results of research of connection of fractal dimension of fractures of wires of typical armature ropes of bioshields of NPP with the parameters of damaged and mechanical properties can be drawn on for the improvement of methodology of research of duration of safe exploitation of ropes of bioshields of NPP. 6.Results of comparison of fractal dimensions fractures of Df and fractal dimensions of Dc of diagrams of change of effort in course of time at tests on the shock bend of standards from the alloy of St45-8 and copula with texture can be used for the improvement of methodology of determination of temperature of fragility of construction materials with taking into account. Scientific novelty: Heterogeneity of crystallography texture of alloy of iron is first investigational with the carbon of brand X10Mn2 a spiral extrusion; Influence of the alternating bending and crystallography texture is first investigational on an anisotropy to the parameter of damaged of letters of alloy of iron of DC01, Х5CrNi18-10 and to titan at further monaxonic tests on розтяг .and at further monaxonic tests on розтяг. It is shown that takes place anisotropy of mechanical properties and to the parameter; First by means of complex researches of fractal dimensions fractures, character of damage of their surfaces, it is set the parameter of damaged, of mechanical properties, that credible reason of premature destructions of wires of typical armature ropes of bioshields of NPP is frettage.