Electroplating of wear-resistant nanocrystalline coatings from a bath containing basic chromium(III) sulfate (chrome tanning agent)

被引：10

作者：

Danilov, F. I. ^{[1
]}

Protsenko, V. S. ^{[1
]}

Gordiienko, V. O. ^{[1
]}

Baskevich, A. S. ^{[1
]}

Artemchuk, V. V. ^{[2
]}

机构：

[1] Ukrainian State Univ Chem Technol, UA-49005 Dnepropetrovsk, Ukraine

[2] Dnipropetrovsk Natl Univ Railway Transport, UA-49010 Dnepropetrovsk, Ukraine

来源：

PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2013年 / 49卷 / 03期

关键词：

ELECTRODEPOSITION; KINETICS; MECHANISM; ELECTROLYTES; BEHAVIOR; ALLOYS;

D O I：

10.1134/S2070205113030076

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Regularities of the electroplating of chromium-carbon alloy coatings from a bath containing basic chromium(III) sulfate, carbamide, formic acid, sodium sulfate, aluminum sulfate, orthoboric acid, and sodium dodecyl sulfate are studied. Replacement of chromium sulfate as a source of trivalent chromium ions in the solution with basic chromium sulfate (chrome tanning agent) results in a decrease in the current density when metal deposition begins. As a result, the covering power of the bath increases. The effects discovered are determined by changes in the composition of the discharged chromium complexes. A certain excess of OH- groups in the inner sphere of electroactive chromium complexes results in acceleration of electroplating. The studied electrolyte based on chrome tanning agent enables one to produce thick high-quality nanocrystalline Cr-C alloy coatings with improved tribological characteristics.

引用

页码：299 / 303

页数：5

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