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Metallurgist
Published in: Metallurgist 9-10/2023

03-03-2023

Effect of Magnetic State of Austenite on Thermodynamics and Kinetics of Martensitic Transformation in Steel

Authors: Yu. V. Dolgachev, V. N. Pustovoit, M. S. Egorov, V. G. Lebedenko

Published in: Metallurgist | Issue 9-10/2023

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Abstract

Based on the analysis of the magnetic state of austenite, changes in thermodynamics and kinetics of the martensitic transformation in carbon steel have been determined. Depending on the strength of the external magnetic field, the dimensions of the magnetic inhomogeneity regions in austenite were calculated. It was shown that with an increase in the field strength, the size and the quantity of such regions increase. Changes in free energy of austenite, caused by the appearance of ferromagnetic order fluctuations, have been determined. The free energy of formation of one ferromagnetic cluster in austenite was estimated. Changes in the energy of formation and diameter of the critical martensite nucleus were analyzed depending on the strength of the external magnetic field. Data about an increase in the volumetric martensite transformation rate under the exposure to a magnetic field were obtained.
previous article Quantitative Structural-Phase Analysis of Changes in Steel after Quenching in Magnetic Field
next article Evaluation of Tribotechnical Characteristics of Experimental Hard Alloy WC+(Co–Fe–Cu) During Friction Without Lubrication Against Stainless Steel

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Metadata
Title
Effect of Magnetic State of Austenite on Thermodynamics and Kinetics of Martensitic Transformation in Steel
Authors
Yu. V. Dolgachev
V. N. Pustovoit
M. S. Egorov
V. G. Lebedenko
Publication date
03-03-2023
Publisher
Springer US
Published in
Metallurgist / Issue 9-10/2023
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-023-01438-y

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