DETERMINATION OF THE DIMENSIONAL AND TOPOLOGICAL PARAMETERS OF THE GRAPHITE PHASE IN CAST IRON BY FRACTAL ANALYSIS OF IMAGES OF ITS MICROSTRUCTURE

Konstantin Makarenko; Anatoliy Poddubnyy; Sergey Glushenok; Ekaterina Zencova

doi:10.30987/1999-8775-2021-9-4-14

UDC

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VAK Russia

05.16.00 05.16.01

DETERMINATION OF THE DIMENSIONAL AND TOPOLOGICAL PARAMETERS OF THE GRAPHITE PHASE IN CAST IRON BY FRACTAL ANALYSIS OF IMAGES OF ITS MICROSTRUCTURE

Published in Bulletin of Bryansk state technical university · Pages 4–14 · Rubric: Mechanical engineering

DOI: https://doi.org/10.30987/1999-8775-2021-9-4-14

Received: 08.09.2021 Accepted: 30.09.2021 Published: 30.09.2021 Language of publication: RUS

Authors

Konstantin Makarenko

ORCID

Anatoliy Poddubnyy

Sergey Glushenok

Ekaterina Zencova

Konstantin Makarenko

Academic degree: doctor of technical sciences

Science rang: professor

Bryansk State Technical University Professor, Head of the Department · Department of Mechanical Engineering and Materials Science · Russian Federation · Bryansk

ORCID

Anatoliy Poddubnyy

Academic degree: doctor of technical sciences

Science rang: docent

Engineering Center for Nuclear Containers Adviser Director General · Russian Federation · Moscow

Sergey Glushenok

Bryansk State Technical University Master's Degree Student · Department of Mechanical Engineering and Materials Science · Russian Federation · Bryansk

Ekaterina Zencova

Bryansk State Technical University Senior Lecturer · Department of Mechanical Engineering and Materials Science · Russian Federation · Bryansk

ABSTRACT

The basics of metallography and modern systems used for studying and analyzing the structures of materials are described. Special attention is paid to the techniques of quantitative microscopy, as a kind of ancestress of modern microstructure analysis systems. The analysis of modern computer programs used to analyze images of microstructures obtained from digital microscopes is presented. The basics of fractal analysis as a highly effective tool for calculating numerical values of parameters of geometrically complex objects are outlined. Using the example of the analysis of graphitized cast iron structure, the application of the fractal analysis method to determine such characteristics of the graphite phase as the shape of graphite inclusions and their distribution in the alloy volume is demonstrated. As part of the study, various classes of cast iron have been studied, such as graphitic pig iron with flaked graphite, cast iron with vermicular graphite, and high-grade cast iron with spheroidal graphite. To determine the shape of graphite inclusions, a fractal dimension has been proposed to be used, and the unevenness of the distribution has been estimated using such a function as lacunarity. The individual stages of determining these characteristics using a specialized FracLac module applied in the structure of the ImageJ program are presented. The obtained results showed high adequacy. Despite positive assessment, the shortcomings identified during the research on the use of fractal analysis methods for identifying geometrically complex dimensional and topological parameters inherent in the graphite phase in cast iron are noted. The ways for further improvement of these methods for solving a wide range of problems in metallography of alloys are proposed.

KEYWORDS

cast iron, graphite phase, microstructure, fractal analysis, parameters, shape, distribution

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Makarenko K. V., Poddubnyy A. N., Glushenok S. V., Zencova E. A. DETERMINATION OF THE DIMENSIONAL AND TOPOLOGICAL PARAMETERS OF THE GRAPHITE PHASE IN CAST IRON BY FRACTAL ANALYSIS OF IMAGES OF ITS MICROSTRUCTURE // Bulletin of Bryansk state technical university. 2021. no. 9. pp. 4-14. DOI: https://doi.org/10.30987/1999-8775-2021-9-4-14. (Date of access 15.09.2026).

MLA

Konstantin Makarenko, Poddubnyy A. N., Glushenok S. V., Zencova E. A.. "DETERMINATION OF THE DIMENSIONAL AND TOPOLOGICAL PARAMETERS OF THE GRAPHITE PHASE IN CAST IRON BY FRACTAL ANALYSIS OF IMAGES OF ITS MICROSTRUCTURE." Bulletin of Bryansk state technical university 2021.9 (2021): 4-14. DOI: https://doi.org/10.30987/1999-8775-2021-9-4-14.

APA

Makarenko K. V., Poddubnyy A. N., Glushenok S. V., Zencova E. A. (2021). DETERMINATION OF THE DIMENSIONAL AND TOPOLOGICAL PARAMETERS OF THE GRAPHITE PHASE IN CAST IRON BY FRACTAL ANALYSIS OF IMAGES OF ITS MICROSTRUCTURE. Bulletin of Bryansk state technical university, 2021(9), 4-14. https://doi.org/10.30987/1999-8775-2021-9-4-14

Chicago

Konstantin Makarenko, Poddubnyy A. N., Glushenok S. V., Zencova E. A.. "DETERMINATION OF THE DIMENSIONAL AND TOPOLOGICAL PARAMETERS OF THE GRAPHITE PHASE IN CAST IRON BY FRACTAL ANALYSIS OF IMAGES OF ITS MICROSTRUCTURE." Bulletin of Bryansk state technical university 2021, no. 9 (2021): 4-14. https://doi.org/10.30987/1999-8775-2021-9-4-14.

WIKI

{{cite journal | author = Makarenko K. V., Poddubnyy A. N., Glushenok S. V., Zencova E. A. | title = DETERMINATION OF THE DIMENSIONAL AND TOPOLOGICAL PARAMETERS OF THE GRAPHITE PHASE IN CAST IRON BY FRACTAL ANALYSIS OF IMAGES OF ITS MICROSTRUCTURE | journal = Bulletin of Bryansk state technical university | year = 2021 | volume = 2021 | issue = 9 | pages = 4-14 | doi = 10.30987/1999-8775-2021-9-4-14 }}

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