PHYSICAL AND CHEMICAL ANALYSIS OF PRACTICE MODIFYING ABILITY OF BARIUM-STRONTIUM CARBONATE BSK-2 IN CAST IRON MANUFACTURING
https://doi.org/10.17073/0368-0797-2015-10-749-755
Abstract
The absence of unambiguous interpretation of experimental data
on the modifi cation of metals and alloys makes it relevant to search and prove hypotheses beyond the classical physical and chemical approach. The paper presents a quantum-mechanical theory of modifying infl uence of substances, in particular the oxides BaO, SrO, CaO in the composition of natural modifi er BSK-2 to metal properties, to complement the classical theory of heterogeneous nucleation of solids. The uniform nature of the modifying infl uence of substances, vibration and ultrasound on the molten metal is connected with the occurrence of the Friedel oscillations. The physics of the contact potential difference shows characteristics of the nucleation process in metal melts. The modifying ability of ultrafi ne inclusions is explained by the theory
of free electrons.
About the Authors
I. F. Selyanin
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Materials, foundry and welding production”
A. V. Feoktistov
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Cand. Sci. (Eng.), Vice-Rector
Russian Federation
Cand. Sci. (Eng.), Vice-Rector
V. B. Deev
National University of Science and Technology “MISIS” (MISIS) (4, Leninskii ave., Moscow, 119049, Russia)
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Deputy Head of Chair “Technology of foundry processes”
O. G. Modzelevskaya
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Russian Federation
Senior Lecturer of the Chair of Quality Management
A. A. Kutsenko
Siberian State Industrial University (42, Kirov str., Novokuznetsk, Kemerovo Region, 654007, Russia)
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Engineer of the first cate gory of the Department of scientifi c research
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Review
For citations:
Selyanin I.F., Feoktistov A.V., Deev V.B., Modzelevskaya O.G., Kutsenko A.A. PHYSICAL AND CHEMICAL ANALYSIS OF PRACTICE MODIFYING ABILITY OF BARIUM-STRONTIUM CARBONATE BSK-2 IN CAST IRON MANUFACTURING. Izvestiya. Ferrous Metallurgy. 2015;58(10):749-755. (In Russ.) https://doi.org/10.17073/0368-0797-2015-10-749-755
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