Fabrication and Corrosion Properties of Electroplated Ni-Co-Cr Alloy Coatings

Tian Yang; Cheng Zhang Peng; Lang Xiang; Huo Cao

doi:10.4028/www.scientific.net/AMM.456.438

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 456Fabrication and Corrosion Properties of...

Fabrication and Corrosion Properties of Electroplated Ni-Co-Cr Alloy Coatings

Abstract:

The electroplated Ni-Co-Cr coatings were prepared on surface of a low carbon steel. The microstructure of the deposits were analyzed by scanning electron microscope (SEM) and X-ray diffraction (XRD), the corrosion resistance of the deposits was evaluated using neutral salt-spray test and polarization measurement. The results show that the deposits are a Co and Cr solid solution in Ni with a grain size of 6.9~10.6nm, were nearly free of corrosion after neutral salt-spray tested 100 hours. With chromium content increasing, the coatings exhibited higher corrosion potential and lower corrosion current, which revealed excellent corrosion resistance.

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Periodical:

Applied Mechanics and Materials (Volume 456)

Pages:

438-441

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.456.438

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Online since:

October 2013

Authors:

Tian Yang, Cheng Zhang Peng, Lang Xiang, Huo Cao

Keywords:

Corrosion Property, Electrodeposition, Ni-Co-Cr Alloy, Trivalent Chromium

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