Anodic Dissolution of Iron–Nickel Alloy under Non-Steady-State Conditions

V. N. Tseluikin
Translated by T. Kabanova

Engels Technological Institute, branch of Yuri Gagarin State Technical University of Saratov, pl. Svobody 17, Engels, Saratov region, 413100 Russia

Correspondence to: e-mail: tseluikin@mail.ru

Received 10 June, 2016

Abstract—Anodic dissolution of iron–nickel electrolytic alloy in the acidic chloride solution is studied by the non-steady-state electrochemical methods. It is shown that, in the initial period, selective dissolution of the alloy with prevailing iron ionization takes place. Then, the anodic dissolution rate is limited by the non-steady-state bulk diffusion of the components in the solid phase. The effective diffusion coefficients of iron in the alloy are calculated.

Keywords: iron–nickel alloy, anodic dissolution, chronovoltammetry, chronoamperometry, diffusion coefficients

DOI: 10.1134/S1023193517110167