Investigation of Corrosion Behaviors on an Fe/Cu-Type ACM Sensor under Various Environments

Zibo Pei; Kui Xiao; Lihong Chen; Qing Li; Jun Wu; Lingwei Ma; Xiaogang Li

doi:10.3390/met10070905

Metals (Jul 2020)

Investigation of Corrosion Behaviors on an Fe/Cu-Type ACM Sensor under Various Environments

Zibo Pei,
Kui Xiao,
Lihong Chen,
Qing Li,
Jun Wu,
Lingwei Ma,
Xiaogang Li

Affiliations

Zibo Pei: Beijing Advanced Innovation Center for Materials Genome Engineering, Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, University of Science and Technology, Beijing 100083, China
Kui Xiao: Beijing Advanced Innovation Center for Materials Genome Engineering, Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, University of Science and Technology, Beijing 100083, China
Lihong Chen: Beijing Advanced Innovation Center for Materials Genome Engineering, Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, University of Science and Technology, Beijing 100083, China
Qing Li: School of Material Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China
Jun Wu: Wuhan Research Institute of Materials Protection Co., Ltd., 126 Bao Feng Erlu, Wuhan 430030, China
Lingwei Ma: Beijing Advanced Innovation Center for Materials Genome Engineering, Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, University of Science and Technology, Beijing 100083, China
Xiaogang Li: Beijing Advanced Innovation Center for Materials Genome Engineering, Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, University of Science and Technology, Beijing 100083, China

DOI: https://doi.org/10.3390/met10070905
Journal volume & issue: Vol. 10, no. 7
p. 905

Abstract

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The applicability of galvanic-cell-based atmospheric corrosion monitoring (ACM) technology has been confirmed empirically in field tests, however the corrosion behaviors on the ACM sensors have rarely been studied systematically. In this study, the influence of temperature, chloride ions, and hydrosulfite (simulated sulfur dioxide) ions on the corrosion behaviors of Fe/Cu-type ACM sensors was investigated. The results show that the hydrosulfite ions led to a larger increase in the Fe/Cu-based ACM current than chloride ions in the initial stage of corrosion, and both changed the components of the corrosion products. Moreover, the hydrosulfite and chloride ions showed a synergistic effect on the corroded ACM sensor. Lastly, a positive correlation between ACM technology and the mass loss method was observed, further indicating that ACM technology can be an effective, convenient, and fast approach to studying the accelerated corrosion behaviors of steels.

Published in Metals

ISSN: 2075-4701 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mining engineering. Metallurgy
Website: http://www.mdpi.com/journal/metals

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