Electrochemical Production and Characterization of Ni-Mo, Ni-Mo-P and Ni+Mo Coatings

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The electrochemical layers with molybdenum were obtained by electrodeposition from citrate bath. The process was carried out under galvanostatic conditions. Structural investigations were conducted by X-ray diffraction method. It was ascertained that electrodeposited Ni-Mo-P alloys are characterized by amorphous structure, Ni-Mo alloys are characterized by nanocrystalline structure whereas Ni+Mo composite layers have a crystalline structure. The chemical composition was determined using X-ray fluorescence spectroscopy method. It was stated that Ni-Mo-P alloys contain 75%Ni, 10%Mo and 15%P, the Ni-Mo alloys contain 90%Ni and 10%Mo, Ni+Mo composite layers contain 90%Ni and 10%Mo. These layers were characterized by electrochemical methods (j=f(E) voltammetry and corrosion resistance by Stern method). The results of corrosion tests show that from among obtained layers the highest corrosion resistances exhibit nanocrystalline Ni-10%Mo alloys.

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Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

465-469

DOI:

10.4028/www.scientific.net/MSF.514-516.465

Citation:

J. Niedbała "Electrochemical Production and Characterization of Ni-Mo, Ni-Mo-P and Ni+Mo Coatings", Materials Science Forum, Vols. 514-516, pp. 465-469, 2006

Online since:

May 2006

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$35.00

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