DOI: 10.18503/1995-2732-2021-19-1-29-34
Abstract
Problem Statement (Relevance): Silumins are widely applied in various industries: shipbuilding and aircraft engineering, construction, weapons industry, and to manufacture household goods and sanitaryware products. Therefore, researchers actively study the process of remelting silumins to get the specified physical and technical properties. It is especially relevant to study external actions (ultrasonic waves, magnetic field, electric field, mechanical vibrations) on the physical properties of ingots. Objectives: To determine the parameters of external fields influencing the process of melt crystallization. Methods Applied: A theoretical assessment of the effect of a constant magnetic field with induction B of < 1 T on some physical and technical parameters of a crystallizing melt; the experimental study aimed at determining the influence of magnetic fields on kinetics and thermodynamics, and heat and mass transfer of the process of crystallizing molten silumins. Originality: Now, there are no physical and physical-mathematical models of the interaction between magnetic fields and internal parameters underlying kinetics and thermodynamics of crystallization, as well as heat and mass transfer of silumin melts. We showed the possibility of determining a functional relationship between the magnetic field characteristics and the internal parameters underlying kinetics of melt crystallization. Findings: It is determined and experimentally proved that a constant magnetic field does not significantly influence kinetics and thermodynamics of crystallization of molten paramagnetic silumin. Practical Relevance: The conducted research serves as a prerequisite for determining the basis for the interaction between magnetic fields and molten metal during its crystallization, and for further development of methods used to set a specified composition and microstructure of ingots.
Keywords
The Gibbs potential, phase equilibrium temperature, supercooling temperature, magnetic energy of magnetization, latent heat of the phase transition.
For citation
Arkulis M.B., Dubskii G.A., Dolgushin D.M., Misheneva N.I. Thermodynamics and Kinetics of Crystallization of Aluminum Alloys in a Constant Magnetic Field. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2021, vol. 19, no. 1, pp. 29–34. https://doi.org/10.18503/1995-2732-2021-19-1-29-34
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