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

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Abstract

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 · 7H2O and CrCl3 · 6H2O 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.

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Acknowledgments

This research was financially supported by the National Natural Science Foundation of China (Nos. 60571032, 90606027), the Chinese 863 High Tech Project (No. 2007AA022007), the Hunan Science Foundation (2007FJ4050), Scientific Research Fund of Hunan Provincial Education Department (08C294), the Doctoral Program of Higher Education for Funding of China (No. 20050286014) and the Open Research Fund of State Key Laboratory of Bioelectronics, Southeast University.

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Authors and Affiliations

  1. State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, People’s Republic of China

    Lijian Xu, Shuxun Ge, Nongyue He & Song Li

  2. Hunan Key Laboratory of Green Packaging and Application of Biological Nanotechnology, Hunan University of Technology, Zhuzhou, People’s Republic of China

    Lijian Xu, Jingjing Du, Nongyue He & Song Li

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  1. Lijian Xu
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  2. Jingjing Du
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  3. Shuxun Ge
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  4. Nongyue He
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  5. Song Li
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Correspondence to Nongyue He.

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Xu, L., Du, J., Ge, S. et al. Preparation and characterization of nanocrystalline Fe–Ni–Cr alloy electrodeposits on Fe substrate. J Appl Electrochem 39, 713–717 (2009). https://doi.org/10.1007/s10800-008-9714-0

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  • DOI: https://doi.org/10.1007/s10800-008-9714-0

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