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Influence of Pretreatment on Cerium Conversion Coatings of Aluminum Alloys

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Abstract:

With the certain deposition process, the conversion coatings by four different pretreatments on LF21 were studied. The morphology and the chemical composition of the conversion coatings were examined by scanning electron microscopy (SEM). The corrosion resistance was investigated by electrochemical impedance spectroscopy (EIS) and the salt spray test. The results showed that the different pretreatments had obvious effect on the cerium conversion coatings. For the certain deposition process, the optimal pretreatment process was identified.

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AICAM 2005 View Preview

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Periodical:

Advanced Materials Research (Volumes 11-12)

Pages:

421-424

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.11-12.421

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Online since:

February 2006

Authors:

Qin Xiu Lv, Xiao Feng Zhang, Yu Ming Tang, Jing Mao Zhao, Yu Zuo

Keywords:

Alkaline Etching, Aluminium Alloy, Cerium Conversion Coatings, Deoxidation, Pre-Treatment

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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