Kinetics of phase transformations in a binary alloy surface layer at the selective dissolution. II. Ag-Au|Ag+ system

Based on the theoretical investigation [1], the conditions of phase transformation of gold on Ag-Au alloy surfaces, which are selectively dissolved in a nitrate environment at the overcritical anodic polarization, are experimentally found. Kinetic regularities of the formation of Au° individual gold...

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Bibliographic Details
Published in:Protection of Metals and Physical Chemistry of Surfaces 2009-05, Vol.45 (3), p.277-282
Main Authors: Kozaderov, O. A., Vvedenskii, A. V., Koroleva, O. V.
Format: Article
Language:English
Subjects:
Alloys
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion and Coatings
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Metallic Materials
Metallurgy
Physicochemical Processes at the Interfaces
Tribology
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Summary:Based on the theoretical investigation [1], the conditions of phase transformation of gold on Ag-Au alloy surfaces, which are selectively dissolved in a nitrate environment at the overcritical anodic polarization, are experimentally found. Kinetic regularities of the formation of Au° individual gold phase on the alloy surface depending on the alloy composition and overpotential, as well as on the presence of surface active organic substances in the solutions and the passivating alloying additives in the alloy are determined.
ISSN:2070-2051
1608-327X
2070-206X
DOI:10.1134/S2070205109030022