Browsing by Author "Boiarkin, V. V."

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    Improvement of Cooling Regimes for the Formation of Mechanical Properties of Hot-Rolled Sheets
    (Український державний університет науки і технологій, ІВК «Системні технології», Дніпро, 2025) Likhosha, M. L.; Boiarkin, V. V.
    ENG: The global demand for hot-rolled sheets made of steel and non-ferrous alloys continues to grow steadily due to their versatility and wide range of applications. Hot-rolled products serve as a basis for further processing into cold-rolled materials used in the automotive industry and other sectors. At the same time, a significant portion of hot-rolled sheets is used directly in construction industry and mechanical engineering, as well as being in demand in the energy and shipbuilding industries. High requirements for strength, plasticity, durability and corrosion resistance of hot-rolled sheets dictate the need for precise control over temperature regimes throughout the entire technological process. Optimization of the pre-rolling heating and controlled cooling regimes of hot-rolled products allows the modification of the metal’s microstructure and mechanical properties. The use of mathematical modeling will allow for the study of thermal regimes and the development of recommendations for their improvement.
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    Kirigami Inspired Solid-State Alloying (KISA) Method of Creation of Functionally Graded Materials
    (Український державний університет науки і технологій, ІВК «Системні технології», Дніпро, 2025) Frolov, Yaroslav V.; Bobukh, Oleksandr S.; Boiarkin, V. V.; Konovodov, Dmytro V.
    ENG: Kirigami-inspired solid-state alloying (KISA) is an innovative technique that applies kirigami principles to control the distribution of alloying elements within a matrix during pressure bonding. By employing precise cuts and patterns, KISA manipulates diffusion and precipitate formation at micro- and nanoscale levels, leading to tailored material properties. This method eliminates challenges associated with conventional liquid alloying, such as oxidation and element loss, while enabling controlled microstructure evolution through roll bonding and heat treatment. Key advantages include improved phase distribution, enhanced interfacial properties, and adaptability for various material types, including powders and amorphous substances. KISA presents new opportunities for designing functionally graded materials with customized mechanical, electrical, and thermal characteristics.