Electrochemical Corrosion Behavior of Monel Alloy in Carbonate Melts

E. V. Nikitina E. V. Nikitina , N. A. Kazakovtseva N. A. Kazakovtseva , M. A. Maikov M. A. Maikov , V. B. Malkov V. B. Malkov , E. A. Karfidov E. A. Karfidov , A. Yu. Chuikin A. Yu. Chuikin
Российский электрохимический журнал
Abstract / Full Text

The interaction of the monel alloy and its corrosion resistance in a melt of alkali metal carbonates in an oxidizing atmosphere was studied. The selectivity of alloy dissolution and modification of the electrode surface after storage at a constant anode potential were analyzed. The generation and development of local corrosion defects (pit corrosion, intercrystallite corrosion, corrosion cracking) on monel alloy (70% nickel, 28% copper), copper, and nickel electrodes in the molten eutectic of lithium, sodium, and potassium carbonates at a working temperature of 773 K were studied. The anode polarization was accompanied by a change in the state of the electrode surface.

Author information
  • Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620137, Russia

    E. V. Nikitina, N. A. Kazakovtseva, M. A. Maikov, V. B. Malkov, E. A. Karfidov & A. Yu. Chuikin

  • Ural Federal University named after the first President of Russia B.N. Yeltsin, Yekaterinburg, 620002, Russia

    E. V. Nikitina, M. A. Maikov & E. A. Karfidov

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