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Information × Registration Number 0218U001440, 0115U000021 , R & D reports Title The development of scientific and technological bases of hereditary modification to increase viscosity and resistance to brittle fracture of steel castings. popup.stage_title Head Stanislav Ye. Kondratyuk, Доктор технічних наук Registration Date 09-02-2018 Organization Physico-technological institute of metals and alloys National academy of Sciences of Ukraine popup.description2 The object of the study is the regularities of the effect of temperature-time parameters of crystallization, structure formation, hot deformation and heat treatment on the laying of hereditary features in the output charge materials and their modifying effect on the phase-structural state and properties of carbonaceous and alloyed steels in castings. The purpose of the work is the development of scientific and technological fundamentals of hereditary modification, the preparation of dispersed structured modifying and ligature materials and components of charge with the use of high-speed heat removal during crystallization, manifestations of metallurgical and structural heredity as means of purposeful influence on the melt and processes of crystallization, structure formation and formation of properties of steel castings with high resistance to brittle fracture. Research methods - metallographic, X-ray diffraction, electron microscopy, local phase-structural, factographic analysis, differential scanning calorimetry, standard methods for determining physical and mechanical properties and computer processing of experimental data. The dominant role of temperature and time conditions of crystallization is established to form a cast structure and elements of heredity in the components of the charge and modifying additives. This paper shows promising application as modifiers of hereditary modification steel granules and powders got at rapid cooling crystallization and after hardening and deformation-thermal treatment. All the proposed modification improves characteristics of dendrite structure, grain structure, reduce liquation, and increase the level of the mechanical properties of steels. For the first time it is investigated and shown that modifiers (СИИТМиш-3, СК-30) prepared by rapid crystallization with fine structure and nanosized inoculators (SiO2, SiC) developed as part of the aluminum based ligature are effective for the crystallization, structure formation and properties of steels. The established regularities reveal new possibilities for controlling the cast structure and increasing the properties of cast products to the level with deformable steels, creating new foundry technologies and materials. The dominant role of temperature and time conditions of crystallization is established to form a cast structure and elements of heredity in the components of the charge and modifying additives. This paper shows promising application as modifiers of hereditary modification steel granules and powders got at rapid cooling crystallization and after hardening and deformation-thermal treatment. All the proposed modification improves characteristics of dendrite structure, grain structure, reduce liquation, and increase the level of the mechanical properties of steels. For the first time it is investigated and shown that modifiers (СИИТМиш-3, СК-30) prepared by rapid crystallization with fine structure and nanosized inoculators (SiO2, SiC) developed as part of the aluminum based ligature are effective for the crystallization, structure formation and properties of steels. The established regularities reveal new possibilities for controlling the cast structure and increasing the properties of cast products to the level with deformable steels, creating new foundry technologies and materials. Product Description popup.authors Вейс Валентин Ілларіонович Клименко Людмила Михайлівна Латиш Валентина Василівна Омелько Лілія Григорівна Пархомчук Жанна В'ячеславівна Санніков Олександр В'ячеславович Стась Ірина Михайлівна Стоянова Олена Миколаївна Шевченко Галина Іванівна Щеглов Володимир Михайлович popup.nrat_date 2020-04-02 Close