Corrosion behavior of Ce-oxide/hydroxide coated AA7075-T6 prepared by dip immersion method

被引：3
|
作者：
Danaee, Iman [1 ]
Kanaani, Maryam [1 ]
Maddahy, Mohammad Hosein [1 ]
Nikmanesh, Soudabeh [1 ]
机构：
[1] Petroleum University of Technology, Abadan, Iran
来源：
Turkish Journal of Engineering and Environmental Sciences | 2014年 / 38卷 / 03期
关键词：
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 significant 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. © TÜBITAK;
D O I：
10.3906/muh-1403-12
中图分类号：
学科分类号：
摘要：
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页码：363 / 372
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