Electrochemical properties of α-Fe + Fe3C nanocrystalline composites in acidic environments

Regularities of the physicochemical behavior of α-Fe + Fe 3 C nanocomposites in a concentration range of cementite from 9 to 92 wt % in sulfate and chloride solutions are studied. Nanocrystalline state (∼40 nm) is found to intensify the active dissolution of α-Fe + Fe 3 C alloys and not noticeably a...

Full description

Saved in:
Bibliographic Details
Published in:Protection of Metals and Physical Chemistry of Surfaces 2010, Vol.46 (1), p.82-89
Main Authors: Syugaev, A. V., Lomaeva, S. F., Reshetnikov, S. M.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion and Coatings
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Metallic Materials
Nanoscale and Nanostructured Materials and Coatings
Tribology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Regularities of the physicochemical behavior of α-Fe + Fe 3 C nanocomposites in a concentration range of cementite from 9 to 92 wt % in sulfate and chloride solutions are studied. Nanocrystalline state (∼40 nm) is found to intensify the active dissolution of α-Fe + Fe 3 C alloys and not noticeably affect the hydrogen evolution in acidic environments. With an increase in the cementite content or when it forms a reticular structure, the catalytic activity of α-Fe + Fe 3 C nanocrystalline composites with respect to the hydrogen evolution increases. Cementite manifests a higher overpotential of dissolution in both sulfate and chloride solutions.
ISSN:2070-2051
1608-327X
2070-206X
DOI:10.1134/S2070205110010120