Functionally Graded Coating of Ni-Fe Fabricated by Pulse Electrodeposition

被引：0
作者：
V. Torabinejad
M. Aliofkhazraei
A. Sabour Rouhaghdam
M. H. Allahyarzadeh
机构：
[1] Tarbiat Modares University,Department of Materials Engineering, Faculty of Engineering
来源：
Journal of Materials Engineering and Performance | 2016年 / 25卷
关键词：
corrosion; functionally graded coating; pulse electrodeposition; wear;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Functionally graded (FG) coatings of Ni-Fe were deposited on mild steel substrate by applying pulse electrodeposition. First, the Ni-Fe FG coatings at constant frequency by gradually reducing the pulse duty cycle in eight steps (D coatings). In these coatings, the amount of Fe was gradually decreased from the substrate/coating interface toward the top surface. Next, the frequency was changed continuously at constant duty cycle (F Coatings), where partial changes were observed in the chemical composition of the coatings. In order to assess corrosion and the tribological behavior of the coatings, potentiodynamic and pin-on-disk tests were conducted. The corrosion tests showed that the corrosion resistance of the D coatings is higher than the F coatings. In addition, increasing the pulse frequency decreased the corrosion resistance of the D coatings. Finally, the wear test results showed that reduction of frequency improves the wear resistance of the D coatings.
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页码：5494 / 5501
页数：7
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