Possibilities of using X-rays in the study of the structure theory of liquid metal melts and the published data results have been investigated in order to improve this theory. In the theory of liquid metal melts there still remains a lot of subjects under discussions now. For example according to modern concepts of the liquid structure it includes metal clusters and disordered melt zone. Both structures are constantly exchanging atoms. According to expert information, for example, some authors (V.I. Arkharov, B.A. Baum et al.) believe that the overheating of the melt by 100-200 degrees above the liquidus point leads to complete destruction of the cluster. According to others, the destruction of clusters occurs only close to the boiling temperature of the melt. Besides it is not clear whether a cluster is a ball or convex polyhedron? As a result of high-temperature X-ray studies of liquid metals we have found that the genetic structure of a liquid metal depends on the crystal system of solid metal crystals. X-rays interference from the liquid metal clusters may occur when there are two or more rows of vibrating atoms, arranged in parallel planes. Therefore many authors who consider clusters to be spherical are wrong. Apparently a cluster is a parallelogram or a convex polyhedron

Austenite to ferrite and pearlite transformation has not been studied enough for low-carbon peritectic steels. Experiments were carried out in the electric arc furnace. Samples of the liquid metal were taken during smelting; three sample at melting, oxidation and reduction as well as one sample from the bucket were taken. The optical binocular microscope Axio Imagez A2m (production of the German company Zeis AG) was used to analyze the samples for the chemical composition of the elements and for the microstructure(ferrite and pearlite amount). It makes it possible to determine ferriteto-pearlite relation in steel by means of the special program Thixomet Pro. Experimental percentage of ferrite was compared with the equilibrium percentage of ferrite calculated from the carbon content in the sample from the Fe-C phase diagram. It has been found that during charge melting experimental ferrite content is 0,52-1,7 equilibrium ferrite content. During the recovery period the microstructural heterogeneity stabilizes and is equal to 0,91-0,93 equilibrium heterogeneity. This ratio is in good agreement with the data available in literature. The amount of rejected finished metal as function of the temperature of the melt at the outlet of the furnace has been determined as well. The amount of rejected steel is minimum if steel is 1,052-1,07 times overheated above the liquidus point which is equal to the temperature of equilibrium microheterogeneity of the molten metal.

Melting process in an electric arc furnace and transformations taking place in solidified metals are not thoroughly understood yet. This article is devoted to these phenomena in liquid and solid metal and therefore is relevant at the moment. The authors sampled molten metal during all periods of mild steel smelting in an electric arc furnace beginning from melting the charge up to metal outlet out of the furnace into the ladle. Samples were analyzed for chemical elements content, and the microstructure of solidified samples (the ratio of ferrite and pearlite). It has been found that elements expanding γ – phase domain of existence (Mn, Ni) during oxidation act similarly at deoxidation, but much weaker. This fact is interesting for science, it is advisable that these phenomena should be checked for the metal melted in other melting units – induction and crucible furnaces

Скребцов А. М. Роль поверхностной активности добавок различных элементов в расплаве железа в улучшении качества литого металла / А. М. Скребцов, В. В. Терзи, А. С. Качиков // Университетская наука-2015 : в 4-х т. : тез. докл. междунар. науч.-техн. конф. (Мариуполь, 19-20 мая 2015 г.) / ГВУЗ «ПГТУ». – Мариуполь, 2015. – Т. 1. – С. 138.

Виявлено, що при плавці сталі в електропечі дію компонентів розплаву на спадкову структуру затверділого металу залежить від хімічного складу металу. Розроблено показник стабільності ферритной структури сталі з використанням електронегативності елементів

It is found that when melting steel in an electric furnace to melt components acting upon the inherited structure of the solidified metal depends on its chemical composition. The experiments were performed in a 20-ton electric arc furnace for smelting peritectic steel of the following composition: 0.17 0.25 С%; 0,90 1,4 Mn%; 0,30 -0,50Si%;  0,030 S%;  0,040 P%;  0,30 Cr%;  0,30 Ni%;  0,60 Cu%; 0,07-0,13 V%.For metallographic studies all samples were subjected to standard metal annealing to eliminate the influence of microstructure on inherited sufficiently rapid cooling from the liquid state. From annealed samples prepared Micro-sections that etched in a 4% solution of nitric acid. With an increase from 100 to 500-fold sections were examined on an optical binocular microscope brands Axio Imagez A2m (production of the German company Zeis AG). The microscope is equipped with a computer, which allows for solving metallurgical problems with the help of a special program Thixomet Pro from thin sections to determine its metal phase composition by percentage of ferrite and pearlite. This paper considers the deviations we obtained from the equilibrium state structures. Develop indicators of stability of ferrites steel structure using the electro negativity of elements. First developed an indicator of stability structure of mild steel in content of ferrite in it. It can be used in controlling the metal structure in the desired direction within the grade composition

Дендритная ликвация элементов в сплавах железа, связь ее с температурой ликвидус расплава / А. М. Скребцов [и др.] // Захист металургійних машин від поломок: зб. наукових праць / ПДТУ. – Маріуполь, 2013. – Вип.15. – С. 208-211.

At steel manufacturing and in the theory of the process liquidus temperature of steel is not always taken into account. It was found that according to the literature that the overheating of the steel liquidus and its mechanical properties depend on the temperature of the liquidus. We propose a way of refining the optimal temperature metal tapping from the furnace

Новый взгляд на градиенты концентраций элементов в сталеплавильной ванне металла / А. М. Скребцов [и др.] // Вісник Приазовського державного технічного університету : зб. наукових праць / ПДТУ. – Маріуполь, 2013. – Вип. 27. – С. 13–16. – (Серія : Технічні науки).

Проведено аналіз методів визначення швидкості та часу твердіння металу для відливок та злитків різних типів. Запропоновано рівняння для визначення глибини рідкої лунки у безперервнолитих злитків в залежності від їх приведеної товщини та швидкості розливки металу.