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Erschienen in: Journal of Materials Engineering and Performance 4/2017

28.02.2017

Corrosion Behavior of Copper-Clad Steel Bars with Unclad Two-End Faces for Grounding Grids in the Red Clay Soil

verfasst von: Yupei Shao, Miaomiao Mu, Bing Zhang, Kaibin Nie, Qiangqiang Liao

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 4/2017

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Abstract

Iron-aluminum oxides in the red soil have a significant impact on the corrosion behavior of the metal for grounding grids. Effects of iron-aluminum oxides on the corrosion behavior of the cross section of copper-clad steel in the red soil have been investigated using electrochemical impedance spectroscopy and Tafel polarization. All the data indicate that the iron-aluminum oxides can promote the corrosion of copper-clad steel in the red soil. The corrosivity of the red soil greatly increases after iron-aluminum oxides are added into the soil. Iron-aluminum oxides promote galvanic corrosion of copper-clad steel and increase the corrosion degree of the center steel layer. The iron-aluminum oxides stimulate corrosion process of copper-clad steel acting as a cathodic depolarizing agent. XRD results further validate that the corrosion products of the copper-clad steel bar mainly consist of Fe3O4 and Cu2O.

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Metadaten
Titel
Corrosion Behavior of Copper-Clad Steel Bars with Unclad Two-End Faces for Grounding Grids in the Red Clay Soil
verfasst von
Yupei Shao
Miaomiao Mu
Bing Zhang
Kaibin Nie
Qiangqiang Liao
Publikationsdatum
28.02.2017
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 4/2017
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-017-2581-2

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