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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 6/2021

17.05.2021

Influence of Corrosion Morphology on Inductive Impedance of Mg-Gd-Y-Zn-Zr-Ag Alloy

verfasst von: Shiyuan Xu, Shunong Jiang, Zhiyong Chen, Chuming Liu

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 6/2021

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Abstract

In this work, the corrosion behavior of Mg-6Gd-4Y-0.6Zn-0.5Zr-0.3Ag alloy was investigated by using electrochemical impedance spectroscopy (EIS). EIS results showed that the inductive impedance changed with immersion duration. After 1 h of immersion, only one inductive loop was found at low frequency (LF). After prolonged immersion (12 and 24 h), dual inductive loops were observed at LF. The corrosion morphology observation indicated that the change in inductive impedance was related to corrosion morphology. The sample immersed for 1 h exhibited a uniform corrosion morphology. Nonuniform corroded areas were observed on samples immersed for a prolonged duration. Severely and lightly corroded areas exhibited different corrosion morphologies. These morphological differences led to the considerable difference between the time constants of inductive impedance on severely and lightly corroded areas. Thus, dual inductive loops could be observed in the EIS of the samples immersed for a prolonged duration.
Vorheriger Artikel Friction-Induced Chemical and Structural Modifications of Molybdenum Disulphide Thin Films
Nächster Artikel Effect of Magnesium on Corrosion Behavior of Hot-Dip Zn-Al-Mg Coating

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Metadaten
Titel
Influence of Corrosion Morphology on Inductive Impedance of Mg-Gd-Y-Zn-Zr-Ag Alloy
verfasst von
Shiyuan Xu
Shunong Jiang
Zhiyong Chen
Chuming Liu
Publikationsdatum
17.05.2021
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 6/2021
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-021-05638-y

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