Chemical Non-Uniformity of the Rolling Mill Metal Roll Made of 70kh3gnmf Steel

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dc.contributor.authorZlyhoriev, K.V.
dc.contributor.authorBiktahirov, F.K.
dc.contributor.authorShapovalov, V.O.
dc.contributor.authorVeretilnyk, O.V.
dc.date.accessioned2026-01-27T07:54:08Z
dc.date.available2026-01-27T07:54:08Z
dc.date.issued2025-12
dc.description.abstractThe results of studies on the chemical composition of the rolling mill roll neck section, which corresponds to the upper part of the 48-ton 70Kh3GNMF steel ingot from which the roll was manufactured, are presented. It was determined that the carbon content across the entire cross-section of the roll exceeds the upper allowable limit (0.75 %) for 70Kh3GNMF steel. The highest content of carbon (about 1 wt.%), sulfur (up to 0.053 wt.%), and phosphorus (up to 0.023 wt.%) is observed at a distance of approximately 1/3 of the radius from the roll surface. Due to the resulting decrease in metal strength, this caused the formation of defects in the form of cracks in these areas during the ingot forging. The necessity of applying external influences to reduce segregation in the steel ingot, particularly heating and metal stirring, is noted.
dc.description.sponsorshipХмельницька обласна організація СНІО України
dc.identifier.citationZlyhoriev K. V., Biktahirov F. K., Shapovalov V. O., Veretilnyk O. V. Chemical Non-Uniformity of the Rolling Mill Metal Roll Made of 70kh3gnmf Steel. Proceedings of the 20th International Conference on Science and Education, January 4 – 13, 2026, Hajduszoboszlo (Hungary). Khmnu, 2025. P. 117-121
dc.identifier.urihttps://elar.khmnu.edu.ua/handle/123456789/20592
dc.language.isoen
dc.publisherХмельницький національниий університет
dc.subjectsteel ingots
dc.subjectchemical non-uniformity
dc.subjectsegregation
dc.subjectmetal defects
dc.titleChemical Non-Uniformity of the Rolling Mill Metal Roll Made of 70kh3gnmf Steel
dc.typeСтаття
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Наука та освіта - 2026 рік