Zairyo-to-Kankyo
Online ISSN : 1881-9664
Print ISSN : 0917-0480
ISSN-L : 0917-0480
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Corrosion of Al and Al Alloys in Cl and Cu2+ Ion-containing Solutions at 363 K
― Effects of Inhibitor Addition on the Corrosion Behavior ―
Takuya HiragaYuki NakayamaFumihiro KoderaMakoto ChibaYutaka ShibataHideaki Takahashi
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2013 Volume 62 Issue 11 Pages 443-448

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Abstract

Effects of an inhibitor on the corrosion of Al and Al alloys in Cl and Cu2+ solutions at 363 K have been investigated by gravimetry and analyses of surfaces and vertical cross sections of specimens with a scanning electron microscope and an energy dispersive X-ray spectrometer. Addition of the inhibitor to the Cu2+ solution inhibited effectively the corrosion of Al and Al alloys, while inhibitor addition to the Cl solution didnʼt at all. The inhibitive effect in the Cu2+ solution can be explained in terms of the SiO2 film formation on the specimen, leading to the suppression of Cu deposition.

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© 2013 Japan Society of Corrosion Engineering
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