Research to the Corrosion Resistance of the Alkaline Zinc-Nickel Alloy Plates

He Zhong Pei; Pan Huang; Qing Nan Shi; Guo Liang Zhang; Xue Li

doi:10.4028/www.scientific.net/AMR.616-618.1756

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 616-618Research to the Corrosion Resistance of the...

Research to the Corrosion Resistance of the Alkaline Zinc-Nickel Alloy Plates

Abstract:

The zinc-nickel alloy coatings were electrodeposited by changing the concentration of the NiSO₄ • 6H₂O in the plating bath. The scanning electron microscopy (SEM) was used to observe the coating’s surface morphology. The EDS was applied to test the coating’s nickel content. The corrosion resistance was studied by using the Tafel curves, AC impedance spectra and the neutral salt spray test. The results showed that: The coating’s nickel content could reach 12.56% when the NiSO4 • 6H2O concentration was 8g/L in the bath and the coating was very smooth, dense and bright. Its corrosion potential was low and its corrosion reaction resistance was best with red rust time up to 46d, so it had good corrosion resistance. But when the NiSO4 • 6H2O concentration was changed, the coatings’ corrosion resistance would be more or less changed.

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Periodical:

Advanced Materials Research (Volumes 616-618)

Pages:

1756-1761

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.616-618.1756

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Online since:

December 2012

Authors:

He Zhong Pei, Pan Huang, Qing Nan Shi, Guo Liang Zhang, Xue Li

Keywords:

Alkaline Zn-Ni Alloy Plate, Corrosion Resistance, Morpholoy, Nickel Content

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DOI: 10.1007/s10800-011-0263-6

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