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Information × Registration Number 0226U000969, (0123U100027) , R & D reports Title Study of the hereditary influence of phase-concentration heterogeneity on the structure formation and properties of eutectic iron-carbon alloys for the production of economically alloyed castings of responsible purpose popup.stage_title Розробка рекомендації та здійснення їх дослідно-промислового випробування щодо отримання виливків відповідального призначення з економнолегованих сірих чавунів. Head Borysenko Andrii Yu., Доктор технічних наук Registration Date 19-01-2026 Organization Institute of Ferrous Metallurgy. ZI Nekrasov of the National Academy of Sciences of Ukraine popup.description1 On the basis of establishing the regularities of the formation of phase-concentration inhomogeneity during crystallization and solid-phase transformations in eutectic iron-carbon alloys, develop recommendations for the purposeful formation of the structure and properties of gray cast iron with a reduced content of alloying elements. popup.description2 Based on the establishment of patterns of formation and the hereditary influence of phase-concentration heterogeneity on the formation of the structure of eutectic iron-carbon alloys during crystallization and solid-phase transformations, recommendations were developed for the guaranteed formation of the required structure and properties of piston rings made of gray cast iron with a reduced content of alloying elements. For this purpose the following problems were solved: the influence of production technology factors on the structure and mechanical properties of special gray cast irons was studied; the hereditary influence of blast furnace iron on the structure of castings was investigated; the influence of the composition of charge materials on the structure and properties of special gray cast irons was determined; the influence of heat treatment on the structure of the metal base of special gray cast irons was studied; the influence of modification on the structure of special gray cast irons was studied; the relationship between the structure of graphite and concentration microheterogeneity of gray cast iron was established; the influence of O, N and H on the structure of special gray cast irons was studied; the influence of alloying elements on the structure and physicomechanical properties of piston rings made of special gray cast irons was studied; a mechanism of the hereditary influence of structural and concentration heterogeneity on the formation of the structure of gray cast irons was proposed; recommendations were developed on the technology of manufacturing critical castings from sparingly alloyed gray cast irons for the production of piston rings for internal combustion engines. Product Description popup.authors Lavr S. Molchanov Губенко Світлана Іванівна Serhii V. Bobyr Tetiana M. Holubenko Vladyslav A. Lutsenko Liudmyla V. Sahura Olha V. Lutsenko Hennadii V. Levchenko Ihor M. Chuiko Parusov Eduard V. Andrii Y. Borysenko Viacheslav M. Kuzmychov Nadiia S. Riaskova Liudmyla I. Shvets Dmytro V. Loshkarov Oleh V. Parusov Hanna I. Sivak Tetiana V. Balakhanova Olena Y. Baranovska Eduard V. Oliinyk popup.nrat_date 2026-01-19 Close