11 research outputs found

    Gender-Based differences in health attitudes among students as a psychological and pedagogical issue

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    Our attitude to health, its protection and maintenance, is not only a personal issue, but a social one as well. The university years are a time when young people are actively shaping their personal values and views of the world.  Examining how students view their health, and what efforts they make to preserve it, is of relevance not only for medical and social studies, but also for psychological and educational ones, as we need to understand what can be done during the university years to shape the right health behaviors, and how to do it. In psychological and educational studies, gender plays a crucial role in shaping the issues in question

    Substructural Strengthening of Medium-Carbon Alloyed Steel with Preliminary Thermomechanical Processing

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    Substructural strengthening result in preliminary thermomechanical processing, when applied cold deformation with the combination of post deformation annealing and induction hardening based on the of dislocation structure inheritance effect on the mechanical properties such as torsion static strength has been studied. Final heat treatment with the use of post deformation tempering followed by induction hardening and low temperature tempering demonstrated the highest static torsion strength in consequence of the inheritance of polygonal dislocation substructure of ferrite arised at the proper post deformation annealing temperature at preliminary thermomechanical processing by dislocation structure of austenite formed under followed induction hardening heating and then by dislocation substructure of martensite formed result in following quenching

    Thermomechanical processing оf steels and alloys physical foundations, resource saving technique and modelling

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    The physical fundamentals, resource-saving technique and modelling of Thermo-mechanical Processing (TMP) applied to steels and alloys are described. Structural and phase transformations under TMP and their role in formation of final structure and mechanical properties in the different steels and alloys are presented. The basic physical principles of TMP as a base for developing of new resource-saving technologies of metal products manu-facturing and examples of industrial application are presented. Different TMP schemes developed for producing of bar and sheet rolling products, annular billets cylindrical billets with variable sections of profile are demonstrated. Modelling, including Physical and Numerical simulation, Experimental Planning and FEM applied to control structure and mechanical properties of TMP treated products are presented.Web of Science381251

    Physical fundamentals of thermomechanical processing in ultrafine-grained metallic materials manufacturing

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    The processing of metallic materials through the application Thermomechanical Processing (TMP) has now become of major importance in the world research and industrial companies. A great attention is paid to study of mechanism TMP applied to different techniques and technological processes providing ultrafine-grained state of metal materials including submicro - and nanocrystalline ones. The main development in terms of obtaining bulk metallic materials received in the recent years, various schemes of TMP of metallic materials, which allows to realize the severe plastic deformation (SPD). The approach usually propose realization of large plastic strains, providing a well-developed fragmented substructure with the creation of high-angle misorientation between the fragments of the substructure. This paper discusses the physical fundamentals and various methods of thermomechanical processing, applied to single and multiphase steels and alloys ensuring the produce ultrafine-grained (UFG) metallic materials.Web of Science431585

    To the problem of the cylindrical product with a bottom forming process optimization under superplasticity condition

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    Рассматривается задача оптимизации процесса пластического формообразования цилиндрического изделия с днищем в температурно-скоростных режимах сверхпластичности алюминиевых сплавов. Показано, что объем зоны сверхпластичности в очаге деформации возрастает с приближением к середине термического интервала проявления эффекта. Формирование максимального объема этой области способствует образованию в стенках изделия мелкозернистой структуры.It is considered the problem of the cylindrical product with a bottom forming process optimization under aluminium alloys superplasticity condition. It is shown that the volume of the superplastic deformation zone increases with approaching to the middle of the thermal interval effect demonstration. The formation of the maximum amount of this area contributes to the formation of the fine-grained structure in the walls of the product.Web of Science22219919
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