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| Niedbała J. |
| ELECTROCHEMICAL PRODUCTION OF NANOCRYSTALLINE LAYERS CONTAINING MOLYBDENUM |
Abstract
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 were characterized by amorphous structure, Ni-Mo alloys were characterized by nanocrystalline structure whereas Ni+Mo composite layers had a crystalline structure. The chemical composition was determined using X-ray fluorescence spectroscopy method. It was stated that Ni-Mo-P alloys contained 75%Ni, 10%Mo and 15%P, the Ni-Mo alloys contained 90%Ni and 10%Mo, Ni+Mo composite layers contained 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 resistance exhibit nanocrystalline Ni-10%Mo alloys.
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| Keywords: nanocrystalline Ni-Mo alloys|amorphous Ni-Mo-P alloys|electrolytic layers|electrodeposition|corrosion resistance| |
| No 2 (2005), p. 166-170 |
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