Preparation and characterization of nanocrystalline Fe-Ni-Cr alloy electrodeposits on Fe substrate

被引：22
|
作者：
Xu, Lijian [1 ,2 ]
Du, Jingjing [2 ]
Ge, Shuxun [1 ]
He, Nongyue [1 ,2 ]
Li, Song [1 ,2 ]
机构：
[1] Southeast Univ, State Key Lab Bioelect, Sch Biol Sci & Med Engn, Nanjing, Peoples R China
[2] Hunan Univ Technol, Hunan Key Lab Green Packaging & Applicat Biol Nan, Zhuzhou, Peoples R China
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 2009年 / 39卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Fe-Ni-Cr alloy; Corrosion resistance; Nickel; Electrodeposition; HYDROGEN EVOLVING ACTIVITY; DEPOSITS; OPTIMIZATION; PERFORMANCE;
D O I：
10.1007/s10800-008-9714-0
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Fe-Ni-Cr alloy layers were prepared by electrodeposition from trivalent chromium plating bath in chloride-sulfate based solution. The influences of bath composition and plating parameters on the alloy electrodeposition process and the properties of deposited alloy were studied. The effects of plating parameters and bath composition such as current density, bath pH, bath temperature, the concentrations of FeSO4 center dot A 7H(2)O and CrCl3 center dot A 6H(2)O on the contents of Fe and Cr in Fe-Ni-Cr alloy layer were investigated. Electrodeposited Fe-Ni-Cr alloy layers on Fe substrate were characterized by X-ray diffraction (XRD), Electronic Differential System (EDS) and a CHI600B electrochemistry workstation. The composition of the Fe-Ni-Cr coatings depends on bath composition and plating conditions including pH, current density, and temperature. The internal structure of the alloy is nanocrystalline, the average grain size is 87 nm, and the corrosion resistance of the alloy layers is better than that of pure nickel layers.
引用
收藏
页码：713 / 717
页数：5
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