Corrosion Behavior of an Intermetallic Compound and Solid Solutions Based on Two-Component Cobalt Systems with Silicon, Iron, and Chromium

Corrosion Behavior of an Intermetallic Compound and Solid Solutions Based on Two-Component Cobalt Systems with Silicon, Iron, and Chromium Full article

Journal

Russian Journal of Electrochemistry
ISSN: 1023-1935 , E-ISSN: 1608-3342

Output data

Year: 2025, Volume: 61, Number: S1, Pages: S1-S7 Pages count : DOI: 10.1134/s1023193525601482

Authors

Lebedeva O.K. ¹ , Kuznetsova I.I. ¹ , Kultin D.Yu. ¹ , Nesterenko S.N. ¹ , Kustov L.M. ^1,2

Affiliations

1	Moscow State University, 119991, Moscow, Russia
2	Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

A corrosion behavior of an intermetallic compound and solid solutions based on the Co75Me25 two-component systems, where Me = Si, Fe, Cr, is considered. The surface morphology of the samples is analyzed using electron and optical microscopy. Corrosion is studied using the polarization-curve method and electrochemical impedance spectroscopy. The greatest corrosion resistance is shown to be achieved in the Co–Cr sample due to the presence of chromium alloying additive, an inhibitory component. Results of corrosion tests for the catalytic capabilities of two-component alloys is discussed briefly. This study also made it possible to explain the role of the intermetallic compound Co2Si in terms of corrosion behavior of an active electrode-catalyst in the nitrate electrochemical reduction reaction.

Lebedeva O.K. , Kuznetsova I.I. , Kultin D.Y. , Nesterenko S.N. , Kustov L.M.
Corrosion Behavior of an Intermetallic Compound and Solid Solutions Based on Two-Component Cobalt Systems with Silicon, Iron, and Chromium
Russian Journal of Electrochemistry. 2025. V.61. NS1. P.S1-S7. DOI: 10.1134/s1023193525601482 WOS Scopus OpenAlex

Submitted:	Jun 2, 2025
Published online:	Mar 27, 2026

≡ Web of science:	WOS:001727647900007
≡ Scopus:	2-s2.0-105035053970
≡ OpenAlex:	W7141344267