Corrosion behaviors of 5A06 aluminum alloy in ethylene glycol

Xiaoguang Zhang; Xiang Liu; Wenping Dong; Gengkai Hu; Pan Yi; Yunhua Huang; Kui Xiao

doi:10.20964/2018.11.64

Corrosion behaviors of 5A06 aluminum alloy in ethylene glycol

Xiaoguang Zhang, Xiang Liu, Wenping Dong, Gengkai Hu, Pan Yi, Yunhua Huang, Kui Xiao^*

^*Corresponding author for this work

School of Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

As a coolant, ethylene glycol solution can influence the corrosion processes of 5A06 aluminum alloys that are used for aerospace applications. The corrosion behavior of 5A06 in contact with pure ethylene glycol was investigated via 3D confocal laser scanning microscopy, scanning electron microscopy and electrochemical impedance spectroscopy. The results demonstrated that pure ethylene glycol may suppress the anodic dissolution of the aluminum alloy, thus decreasing the corrosion rate in pure ethylene glycol. Furthermore, the protective effect of oxidation films was enhanced as the result of a layer of Al-alcohol products that formed above the oxidation films in ethylene glycol.

Original language	English
Pages (from-to)	10470-10479
Number of pages	10
Journal	International Journal of Electrochemical Science
Volume	13
Issue number	11
DOIs	https://doi.org/10.20964/2018.11.64
Publication status	Published - 1 Nov 2018

Keywords

Aluminum alloy
Corrosion mechanisms
EIS
Ethylene glycol
Organic

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10.20964/2018.11.64

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title = "Corrosion behaviors of 5A06 aluminum alloy in ethylene glycol",

abstract = "As a coolant, ethylene glycol solution can influence the corrosion processes of 5A06 aluminum alloys that are used for aerospace applications. The corrosion behavior of 5A06 in contact with pure ethylene glycol was investigated via 3D confocal laser scanning microscopy, scanning electron microscopy and electrochemical impedance spectroscopy. The results demonstrated that pure ethylene glycol may suppress the anodic dissolution of the aluminum alloy, thus decreasing the corrosion rate in pure ethylene glycol. Furthermore, the protective effect of oxidation films was enhanced as the result of a layer of Al-alcohol products that formed above the oxidation films in ethylene glycol.",

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author = "Xiaoguang Zhang and Xiang Liu and Wenping Dong and Gengkai Hu and Pan Yi and Yunhua Huang and Kui Xiao",

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AU - Zhang, Xiaoguang

AU - Liu, Xiang

AU - Dong, Wenping

AU - Hu, Gengkai

AU - Yi, Pan

AU - Huang, Yunhua

AU - Xiao, Kui

PY - 2018/11/1

Y1 - 2018/11/1

N2 - As a coolant, ethylene glycol solution can influence the corrosion processes of 5A06 aluminum alloys that are used for aerospace applications. The corrosion behavior of 5A06 in contact with pure ethylene glycol was investigated via 3D confocal laser scanning microscopy, scanning electron microscopy and electrochemical impedance spectroscopy. The results demonstrated that pure ethylene glycol may suppress the anodic dissolution of the aluminum alloy, thus decreasing the corrosion rate in pure ethylene glycol. Furthermore, the protective effect of oxidation films was enhanced as the result of a layer of Al-alcohol products that formed above the oxidation films in ethylene glycol.

AB - As a coolant, ethylene glycol solution can influence the corrosion processes of 5A06 aluminum alloys that are used for aerospace applications. The corrosion behavior of 5A06 in contact with pure ethylene glycol was investigated via 3D confocal laser scanning microscopy, scanning electron microscopy and electrochemical impedance spectroscopy. The results demonstrated that pure ethylene glycol may suppress the anodic dissolution of the aluminum alloy, thus decreasing the corrosion rate in pure ethylene glycol. Furthermore, the protective effect of oxidation films was enhanced as the result of a layer of Al-alcohol products that formed above the oxidation films in ethylene glycol.

KW - Aluminum alloy

KW - Corrosion mechanisms

KW - EIS

KW - Ethylene glycol

KW - Organic

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ER -

Corrosion behaviors of 5A06 aluminum alloy in ethylene glycol

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