Paper Title:

Influence of Pretreatment on Cerium Conversion Coatings of Aluminum Alloys

Periodical Advanced Materials Research (Volumes 11 - 12)
Main Theme AICAM 2005
Edited by Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
Pages 421-424
DOI 10.4028/www.scientific.net/AMR.11-12.421
Citation Qin Xiu Lv et al., 2006, Advanced Materials Research, 11-12, 421
Online since February, 2006
Authors Qin Xiu Lv, Xiao Feng Zhang, Yu Ming Tang, Jing Mao Zhao, Yu Zuo
Keywords Alkaline Etching, Aluminum Alloy, Cerium Conversion Coatings, Deoxidation, Pre-Treatment
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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.