Influence of melt treatment parameters on the characteristics of modified cast iron in the metallurgical industry using intellectual analysis methods

Authors

DOI:

https://doi.org/10.15587/1729-4061.2021.229642

Keywords:

data mining, heat-time treatment, chemical parameter, ferrosilicon, rareearth metals, engineering, pyroelectric, transformation, optimization, structure

Abstract

A study of the effect of holding the cast iron melt at temperatures of 1,300, 1,450 and 1,600 °C for 20, 55 and 90 minutes on the structure and properties of cast iron in a liquid state and after crystallization was carried out. The studies were carried out on samples with a diameter of 30 mm; cast iron containing 3.61–3.75 % carbon, 1.9–2.4 % silicon, 0.03 % manganese, 0.081–0.084 % phosphorus, 0.031–0.039 % sulfur was poured into green-sand molds. The samples were cast from the original cast iron (unmodified), modified with ferrosilicon 75 GOST 1415-93 (FS75), rare-earth metals (REM) and together with the REM+FS75 complex. The structure of cast iron was investigated by optical metallography, electron microscopy and X-ray structural analysis. An increase in the holding temperature and time of the cast iron melt leads to an increase in its hardness. An increase in temperature at a short holding time leads to an increase in strength in the entire investigated temperature range (1,300–1,600 °С). Holding for 90 minutes at a temperature of 1,450 °C corresponds to an extremum, after which, with a further increase in temperature, a sharp drop in strength is observed. The change in the toughness of cast iron is characterized in a similar way

Author Biographies

Denis Boldyrev, Togliatti State University

Doctor of Technical Sciences, Professor

Department of Nanotechnologies, Material Science and Mechanics

Roman Dema, Nosov Magnitogorsk State Technical University

PhD, Associate Professor

Department of Metal Forming Machines and Technologies

Oleg Latypov, Nosov Magnitogorsk State Technical University

Postgraduate Student

Department of Metal Forming Machines and Technologies

Anton Zhilenkov, Saint-Petersburg State Marine Technical University

Department of Cyber-Physical Systems

Vitalii Emelianov, Financial University under the Government of the Russian Federation

Doctor of Technical Sciences

Department of Business Informatics

Alexey Nedelkin, Plekhanov Russian University of Economics

PhD

Department of Informatics

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Published

2021-04-30

How to Cite

Boldyrev, D., Dema, R., Latypov, O., Zhilenkov, A., Emelianov, V., & Nedelkin, A. (2021). Influence of melt treatment parameters on the characteristics of modified cast iron in the metallurgical industry using intellectual analysis methods. Eastern-European Journal of Enterprise Technologies, 2(12 (110), 52–58. https://doi.org/10.15587/1729-4061.2021.229642

Issue

Vol. 2 No. 12 (110) (2021): Materials Science

Section

Materials Science

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Copyright (c) 2021 Denis Boldyrev, Roman Dema, Oleg Latypov, Anton Zhilenkov, Vitalii Emelianov, Alexey Nedelkin

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