Functionally Graded Coating of Ni-Fe Fabricated by Pulse Electrodeposition

被引：29

作者：

Torabinejad, V. ^{[1
]}

Aliofkhazraei, M. ^{[1
]}

Rouhaghdam, A. Sabour ^{[1
]}

Allahyarzadeh, M. H. ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Mat Engn, Fac Engn, POB 14115-143, Tehran, Iran

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2016年 / 25卷 / 12期

关键词：

corrosion; functionally graded coating; pulse electrodeposition; wear; GRAIN-SIZE; TRIBOLOGICAL PERFORMANCE; NANOCRYSTALLINE NICKEL; ALLOYS; BEHAVIOR; SUPERLATTICES; DEFORMATION; MULTILAYERS; PARAMETERS; EVOLUTION;

D O I：

10.1007/s11665-016-2376-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页码：5494 / 5501

页数：8

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