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Information × Registration Number 0223U005409, 0121U108343 , R & D reports Title Development of scientific and technological foundations of processes for increasing wear resistance and brittle fracture resistance of steel castings popup.stage_title Head Kondratiuk Stanislav Ye., Доктор технічних наук Registration Date 22-12-2023 Organization Physico-technological institute of metals and alloys National academy of Sciences of Ukraine popup.description2  The object of research is the processes of structure formation of carbon and alloy steels obtained under different temperature and time conditions of crystallization. The subject of research is the regularity of the influence of temperature and time conditions of melt crystallization on structure formation and the formation of cross-sectional properties of steel castings. The purpose of the work is to increase the resistance to brittle fracture and wear resistance of steel castings using the purposeful influence of thermo-time parameters on the processes of crystallization and structure formation of steels. Research methods are metallographic, X-ray structural, electron microscopic, determination of physical and mechanical properties and wear resistance, as well as computer processing of experimental data. On the basis of systematic studies, the regularities of the influence of temperature and time conditions of melt crystallization on morphological features, characteristics of the cast structure and the formation of mechanical properties in the cross-section of steel castings have been established, which opens up the possibility of purposeful changes in order to ensure high mechanical and operational indicators of cast steel products. Interpolation models (regression equations) obtained based on the results of mathematical processing of experimental data allow to quantitatively assess the influence of thermokinetic parameters of crystallization on changes in the morphology and extent of structural zones and characteristics of mechanical properties in various structural zones of castings, to ensure the production of castings with a predicted and predetermined high complex properties. Product Description popup.authors Veis Valentyn I. Klymenko Lyudmyla M Latvian Valentine V. MOZHAROVSKA INNA V Parkhomchuk Zhanna V. Sannikov Oleksandr Vyacheslavovich Shevchenko Halyna I. popup.nrat_date 2023-12-22 Close