Nonmetallic Inclusions and Promising Principles for Improving the Set of Properties and Quality Characteristics of Steel

Зайцев, А. И.; Rodionova, I. G.; Бакланова, О. Н.; Kryukova, A. I.; Udod, K. A.; Mishnev, P. A.; Митрофанов, А. В.

doi:10.1007/s11015-015-0028-2

Cited by 3 publications

(2 citation statements)

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“…Despite the use of special technological methods of soft reduction, electromagnetic mixing, introduction of macrocoolers into the axial zone of a continuously cast billet, etc., it is not possible to completely prevent the development of segregation processes. It is known that the formation of certain types, including glassy non-metallic inclusions at the final stages of ladle processing during the continuous casting of steel, leads to a significant inhibition of heat and mass transfer processes and, accordingly, the development of segregation processes during steel crystallization [101][102][103].…”

Section: Effect Of Excess Phases On the Homogeneity Of Composition An...mentioning

confidence: 99%

Hot Ductility, Homogeneity of the Composition, Structure, and Properties of High-Strength Microalloyed Steels: A Critical Review

Зайцев

Arutyunyan

Koldaev

2023

Metals

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High-strength micro-alloyed steels are widely used in various branches of technology and industry due to the simultaneous combination of high indicators of strength, ductility, fatigue, corrosion resistance, and other service properties. This is achieved due to the reasonable choice of the optimal chemical composition and parameters of temperature deformation treatment of steel that provide a synergistic effect on the dispersed microstructure and characteristics of excess phase precipitates, which control the achievement of these difficult-to-combine properties of rolled products. Additionally, the improvement of the level and stability of these properties, as well as the prevention of the occurrence of defects, is largely determined by the indicators of the homogeneity of the composition, structure by volume and manufacturability of the metal, and primarily hot ductility, which are controlled by the presence of precipitation of excess phases, including micro-alloying elements. In accordance with the circumstances noted, in the present review, a generalization, systematization, and analysis of the results of the studies are conducted on the effect of phase precipitates on the hot ductility and homogeneity of composition and structure, depending on the chemical composition and parameters of the temperature-deformation treatment of steel.

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Section: Effect Of Excess Phases On the Homogeneity Of Composition An...mentioning

confidence: 99%

Hot Ductility, Homogeneity of the Composition, Structure, and Properties of High-Strength Microalloyed Steels: A Critical Review

Зайцев

Arutyunyan

Koldaev

2023

Metals

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“…According to the results of the most recent detailed studies [5,6], it has been established that under certain modes of ladle treatment and continuous casting of modern structural steels oxide inclusions are formed based on SiO 2 -Al 2 O 3 , SiO 2 -Al 2 O 3 -CaO, MnO-SiO 2 , and SiO 2 -Al 2 O 3 -MnO compositions and others, which in many respects determine the resulting structural state and complex of metal properties. Among them are vitreous inclusions.…”

Section: Regularities Of Changes In the Characteristics Of Nonmetallimentioning

confidence: 99%

Promising directions of increasing the properties of steel

Зайцев¹,

Koldaev²,

Arutyunyan³

2018

Nanosystems: Phys. Chem. Math.

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The study of regularities of the formation and evolution of nonmetallic inclusions and phase precipitates in modern structural steels has been carried out. It has been shown that the formation of several types of complex nonmetallic inclusions results in a substantial increase in the complex of steel properties and neutralizing the negative influence of impurities while a reduction in costs. An even more significant improvement in the properties of steel can be achieved by controlling the characteristics of carbide, carbonitride, and other types of phase precipitates. Herewith, ferritic steels are the most promising. The previously unreachable complex of indicators of difficult to combine service properties of these steels has been achieved by the formation of a homogeneous fine-dispersed microstructure and a volumetric system of primarily interphase precipitates. Based on established principles, effective technologies for the production of a wide range of various types of steels have been developed.

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Prospective directions for development of metallurgy and materials science of steel

Зайцев

2017

Pure and Applied Chemistry

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The features of current state of metallurgical technology and materials science of mass high-grade steels are viewed. A promising direction for principle improvement of the complex of properties and qualitative characteristics of steel including those, which are difficult to combine, is shown. It is the development of adequate physico-chemical methods of prediction and efficient technology methods of management of non-metallic inclusions, forms of presence of impurities, phases precipitations, structural state, including uniformity over the volume of metal. Additionally this approach allows reducing costs and expanding the raw material base. Its effectiveness is illustrated by the results of research carried out for a number of groups of mass high-quality steels.

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Nonmetallic Inclusions and Promising Principles for Improving the Set of Properties and Quality Characteristics of Steel

Cited by 3 publications

References 1 publication

Hot Ductility, Homogeneity of the Composition, Structure, and Properties of High-Strength Microalloyed Steels: A Critical Review

Hot Ductility, Homogeneity of the Composition, Structure, and Properties of High-Strength Microalloyed Steels: A Critical Review

Promising directions of increasing the properties of steel

Prospective directions for development of metallurgy and materials science of steel

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