Corrosion of carbon steel under epoxy-varnish coating studied by scanning Kelvin probe

Kui Xiao; Chaofang Dong; Xin Zhang; Junsheng Wu; Longjiao Xu; Xiaogang Li

doi:10.1007/s11595-012-0556-6

Corrosion of carbon steel under epoxy-varnish coating studied by scanning Kelvin probe

Kui Xiao
, Chaofang Dong
, Xin Zhang
, Junsheng Wu
, Longjiao Xu
, Xiaogang Li^*

^*Corresponding author for this work

University of Science and Technology Beijing
Ministry of Ecology and Environment

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

6 Scopus citations

Abstract

The corrosion behavior of partly coated carbon steel was investigated by salt spray test and scanning Kelvin probe(SKP) in order to understand the long-term corrosion behavior of coated carbon steel in marine atmosphere environment. The localized corrosion was accurately characterized by SKP in both coated and uncoated regions. The SKP results showed that Volta potential varied with the test time, and the more the corrosion products, the more positive the potential. The borderline between coated and uncoated regions of partly coated steel shifted towards the coated side with the increasing of test time. The coating disbonding rate could be determined according to the shift of potential borderline measured by SKP. The corrosion mechanism of partly coated steel in NaCl salt spray was discussed according to the potential maps and corrosion morphologies.

Original language	English
Pages (from-to)	825-829
Number of pages	5
Journal	Journal Wuhan University of Technology, Materials Science Edition
Volume	27
Issue number	5
DOIs	https://doi.org/10.1007/s11595-012-0556-6
State	Published - Oct 2012
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

Keywords

Carbon steel
Coating
Salt spray test
Scanning Kelvin probe

Access to Document

10.1007/s11595-012-0556-6

Cite this

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title = "Corrosion of carbon steel under epoxy-varnish coating studied by scanning Kelvin probe",

abstract = "The corrosion behavior of partly coated carbon steel was investigated by salt spray test and scanning Kelvin probe(SKP) in order to understand the long-term corrosion behavior of coated carbon steel in marine atmosphere environment. The localized corrosion was accurately characterized by SKP in both coated and uncoated regions. The SKP results showed that Volta potential varied with the test time, and the more the corrosion products, the more positive the potential. The borderline between coated and uncoated regions of partly coated steel shifted towards the coated side with the increasing of test time. The coating disbonding rate could be determined according to the shift of potential borderline measured by SKP. The corrosion mechanism of partly coated steel in NaCl salt spray was discussed according to the potential maps and corrosion morphologies.",

keywords = "Carbon steel, Coating, Salt spray test, Scanning Kelvin probe",

author = "Kui Xiao and Chaofang Dong and Xin Zhang and Junsheng Wu and Longjiao Xu and Xiaogang Li",

year = "2012",

month = oct,

doi = "10.1007/s11595-012-0556-6",

language = "英语",

volume = "27",

pages = "825--829",

journal = "Journal Wuhan University of Technology, Materials Science Edition",

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TY - JOUR

T1 - Corrosion of carbon steel under epoxy-varnish coating studied by scanning Kelvin probe

AU - Xiao, Kui

AU - Dong, Chaofang

AU - Zhang, Xin

AU - Wu, Junsheng

AU - Xu, Longjiao

AU - Li, Xiaogang

PY - 2012/10

Y1 - 2012/10

N2 - The corrosion behavior of partly coated carbon steel was investigated by salt spray test and scanning Kelvin probe(SKP) in order to understand the long-term corrosion behavior of coated carbon steel in marine atmosphere environment. The localized corrosion was accurately characterized by SKP in both coated and uncoated regions. The SKP results showed that Volta potential varied with the test time, and the more the corrosion products, the more positive the potential. The borderline between coated and uncoated regions of partly coated steel shifted towards the coated side with the increasing of test time. The coating disbonding rate could be determined according to the shift of potential borderline measured by SKP. The corrosion mechanism of partly coated steel in NaCl salt spray was discussed according to the potential maps and corrosion morphologies.

AB - The corrosion behavior of partly coated carbon steel was investigated by salt spray test and scanning Kelvin probe(SKP) in order to understand the long-term corrosion behavior of coated carbon steel in marine atmosphere environment. The localized corrosion was accurately characterized by SKP in both coated and uncoated regions. The SKP results showed that Volta potential varied with the test time, and the more the corrosion products, the more positive the potential. The borderline between coated and uncoated regions of partly coated steel shifted towards the coated side with the increasing of test time. The coating disbonding rate could be determined according to the shift of potential borderline measured by SKP. The corrosion mechanism of partly coated steel in NaCl salt spray was discussed according to the potential maps and corrosion morphologies.

KW - Carbon steel

KW - Coating

KW - Salt spray test

KW - Scanning Kelvin probe

UR - https://www.scopus.com/pages/publications/84872726989

U2 - 10.1007/s11595-012-0556-6

DO - 10.1007/s11595-012-0556-6

M3 - 文章

AN - SCOPUS:84872726989

SN - 1000-2413

VL - 27

SP - 825

EP - 829

JO - Journal Wuhan University of Technology, Materials Science Edition

JF - Journal Wuhan University of Technology, Materials Science Edition

IS - 5

ER -

Corrosion of carbon steel under epoxy-varnish coating studied by scanning Kelvin probe

Abstract

UN SDGs

Keywords

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