Title of article
Corrosion behavior of Ce-oxide/hydroxide coated AA7075-T6 prepared by dipimmersion method
Author/Authors
DANAEE, Iman petroleum university of technology - Abadan Faculty of Petroleum Engineering, آبادان, ايران , KANAANI, Maryam petroleum university of technology - Abadan Faculty of Petroleum Engineering, آبادان, ايران , MADDAHY, Mohammad Hosein petroleum university of technology - Abadan Faculty of Petroleum Engineering, آبادان, ايران , NIKMANESH, Soudabeh petroleum university of technology - Abadan Faculty of Petroleum Engineering, آبادان, ايران
From page
363
To page
372
Abstract
Abstract:In this study, cerium-based conversion coating was deposited on aluminum 7075-T6 by dip immersion method. Cerium oxide/hydroxide is an environmentally friendly conversion coating. Its corrosion resistance in 3.5 wt.% NaCl solution was investigated by means of electrochemical impedance spectroscopy, potentiodynamic polarization, and surface techniques. The coated samples showed a signi cant decrease in corrosion rate and the coating resistance increased with increasing immersion time up to 1200 s. In addition, electrochemical impedance data showed that in the presence of cerium oxide/hydroxide conversion coatings, the charge transfer resistance of aluminum increased. Surface morphology and its chemical composition were analyzed by means of scanning electron microscopy and energy dispersive spectroscopy.
Keywords
Aluminum 7075 , cerium oxide , hydroxide coatings , impedance , corrosion , scanning electron microscopy , potentiodynamic polarization
Journal title
Turkish Journal of Engineering and Environmental Sciences
Journal title
Turkish Journal of Engineering and Environmental Sciences
Record number
2531894
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