Abstract
The orthogonal design was used to screen the film_forming technique on LY12 aluminum alloy using quadrivalent cerium salt, and the corrosion_resistance performance of the coating was studied. The results revealed that: after LY12 aluminum alloy was treated by cerium salt, its pitting potential shifts to positive direction while the corrosion potential slightly decreases, showing that the alloy becomes less sensitive to pitting corrosion was greatly improved, comparable to that after chromate treatment; in addition, by combining the results of electrochemical measurements with surface analysis, the mechanism of corrosion_resistance on the race_earth conversion coating of the aluminum alloy was also discussed.
Keywords
Aluminum alloy, Cerium salt treatment, Conversion coating, Technique, Corrosion resistance
Publication Date
2003-08-28
Online Available Date
2003-08-28
Revised Date
2003-08-28
Received Date
2003-08-28
Recommended Citation
Jun-tao WANG, Jian-hua WU, Guang-zhang CHEN.
The Technique of Rare-earth Conversion Coatings on Aluminum Alloy[J]. Journal of Electrochemistry,
2003
,
9(3): Article 18.
DOI: 10.61558/2993-074X.3319
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol9/iss3/18
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