Abstract
The corrosion electrochemical behavior of copper-based alloys (L63, cupronickel, Monel, Cu–Al) in high-temperature salt electrolytes of various compositions in the galvanostatic mode is studied. Brass L63 is the most promising copper-based alloy for the production of nanoporous and mesoporous materials in salt melts. L63 brass samples have the smallest average pore diameter in experiments with a chloride melt. The pore size was 1.1 μm in the galvanostatic mode under the specified conditions (200 A/m2, 500°C). The results of cyclic voltammetry can be applied to predict the character of electrochemical destruction and to analyze the stages of conjugated anodic processes. The influence of the nature of the second alloy component on the character of electrochemical destruction and the formation of the developed surface layer of the alloys is found.
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This work was supported by the Russian Foundation for Basic Research, project no. 17-03-00715 A.
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Translated by E. Yablonskaya
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Karfidov, E.A., Nikitina, E.V., Kazakovtseva, N.A. et al. Character of Selective Anodic Dissolution. Influence of the Alloy Composition. Russ. Metall. 2020, 127–132 (2020). https://doi.org/10.1134/S003602952002007X
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DOI: https://doi.org/10.1134/S003602952002007X