Kh. B. Kushkhov, A. A. Khotov, A. S. Kholkina, V. V. Khasanov, D. G. Dudarova
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Mechanism of the Combined Electroreduction of Dy3+ and Fe3+ Ions in the KCl–NaCl–CsCl Eutectic Melt at 823 K
Abstract—The kinetic laws of Fe3+ ion electroreduction in the KCl–NaCl–CsCl eutectic melt at 823 K are determined. The potentials of metallic iron and dysprosium formation on the inert tungsten electrode in the KCl–NaCl–CsCl molten system are found to differ by approximately 1.5 V. In the case of the combined presence of Fe3+ and Dy3+ ions in the KCl–NaCl–CsCl eutectic melt, a certain depolarization of dysprosium ion electroreduction occurs on the metallic iron preliminary deposited at the tungsten electrode to form iron- and dysprosium-based intermetallic phases of different compositions. The dissolution potentials of the different intermetallic phases DyxFey are determined by open circuit chronopotentiometry.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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