Abstract
The possibility of electrodeposition of rare earth alloys from aqueous bath was investigated using varous techniques such as linear potential sweeping, cyclic voltammetry, electrodepositon at constant potential etc. The Ni-Ce-P alloys with different cerium content were electrodeposited from a weakly acidic solution containing CeCl3, NaH2PO2 and so on the crystal structure and component were characterized by XPS, AES, XRD and SEM observation. The codeposits were found to be more highly corrosion resistent than that of Ni-P amorphous alloys by measuring polarization resistance and corrosion potential. The effects of codeposition conditions on the corrosion resistance were discussed. The conclusion is that the codeposition of cerium can signficantly improve corrosion resistance of the Ni-Ce-P alloys, which increases with increasing the cerium content in the coatings. The codeposition mechanism of Ni-Ce-P was preliminarily explored; under the existing experimental conditions and based on the results obtained, it is suggested that the codeposition of Ni-Ce-P is likely to occur by an induced codeposition mechanism.
Keywords
Ni-Ce-P alloys, Amorphous, Induced codeposition, Polarization resistance, Corrosion potential
Publication Date
2001-08-28
Online Available Date
2001-08-28
Revised Date
2000-11-13
Received Date
2000-07-27
Recommended Citation
Jiang LIU, Xiong JIANG, Lin-cai JIANG, Ze-shan ZHU.
Codeposition and Corrosion Resistance of Nickel-Cerium-Phosphorus Amorphous Alloys[J]. Journal of Electrochemistry,
2001
,
7(3): 294-301.
DOI: 10.61558/2993-074X.3259
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol7/iss3/11
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons
