Corrosion Behavior of Reverse-Pulse Electrodeposited Zn-Ni Alloys in Saline Environment

被引：9

作者：

Boonyongmaneerat, Yuttanant ^{[1
]}

Saengkiettiyut, Kanokwan ^{[1
]}

Saenapitak, Sawalee ^{[1
]}

Sangsuk, Supin ^{[1
]}

机构：

[1] Chulalongkorn Univ, Met & Mat Sci Res Inst, Bangkok 10330, Thailand

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2014年 / 23卷 / 01期

关键词：

corrosion; electrodeposition; electrochemical impedance; metals and alloys; potentiodynamic; CHLORIDE BATH; ALKALINE-SOLUTIONS; COATINGS; MICROSTRUCTURE; DEPOSITION; RESISTANCE; STEEL;

D O I：

10.1007/s11665-013-0685-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The study investigates the relationship of the reverse-pulse electrodeposited zinc-nickel alloy coatings' characteristics and their corrosion behaviors in a saline environment, using both anodic polarization and electrochemical impedance analysis. The introduction of anodic pulsation gives deposits of more refined grain sizes and increased nickel contents, resulting in improvement of the corrosion resistance. High anodic current densities employed in the reverse-pulse electrodeposition, however, modulate crystallographic orientations of the grains, introduce porosity to the structure, and hence adversely affect the corrosion resistance of the coating deposits.

引用

页码：302 / 307

页数：6

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