A Study of Conversion Coatings on Vanadium/Galvanic Zinc

被引：6
作者：
Akulich, N. E. [1 ]
Zharskii, I. M. [1 ]
Ivanova, N. P. [1 ]
机构：
[1] Belarusian State Technol Univ, Minsk 220006, BELARUS
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2017年 / 53卷 / 03期
关键词：
CHROMATE; PASSIVATION; PHOSPHATE; ZN;
D O I：
10.1134/S2070205117020034
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The protective ability and corrosion resistance of conversion coatings on vanadium/galvanic zinc were assessed with chemical and electrochemical approaches. The conversion coatings were shown to possess high protective properties and corrosion resistance in a 3% NaCl solution. FT-IR and X-ray analysis data indicate that the conversion coatings on vanadium/galvanic zinc are complex systems consisting of ZnO and V2O5 oxides, as well as phosphorus-containing zinc and vanadium compounds, V(HPO4)(2), Zn-3(PO4)(2), and Zn(VO3)(2), which are resistant throughout 13-19 h in a salt-spray chamber until the appearance of the first symptoms of white zinc corrosion.
引用
收藏
页码：503 / 510
页数：8
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