Effects of AC current density on the corrosion behavior of X65 steel in carbonate/bicarbonate solutions

Min Zhu; Cui Wei Du; Xiao Gang Li; Zhi Yong Liu; Tian Liang Zhao; Qiong Li; Jing Huan Jia

doi:10.13374/j.issn1001-053x.2014.08.013

Effects of AC current density on the corrosion behavior of X65 steel in carbonate/bicarbonate solutions

Min Zhu^*
, Cui Wei Du
, Xiao Gang Li
, Zhi Yong Liu
, Tian Liang Zhao
, Qiong Li
, Jing Huan Jia

^*Corresponding author for this work

University of Science and Technology Beijing

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

2 Scopus citations

Abstract

The effects of AC current density on the corrosion behavior of X65 steel in concentrated carbonate/bicarbonate solutions were studied by potentiodynamic polarization curve measurement, immersion testing and the surface characterization technique. When the AC current density increases, the passive region significantly narrows, the pitting potential negatively shifts, the passive current density increases, and the corrosion of X65 steel accelerates. At low AC current density (<100 A·m^-2) the passive current density, the pitting corrosion degree and the corrosion rate slightly increase with the increasing of AC current density, but at high AC current density (≥100 A·m^-2), they increase rapidly.

Original language	English
Pages (from-to)	1077-1081
Number of pages	5
Journal	Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing
Volume	36
Issue number	8
DOIs	https://doi.org/10.13374/j.issn1001-053x.2014.08.013
State	Published - 1 Aug 2014
Externally published	Yes

Keywords

AC electric field
Bicarbonates
Carbonates
Corrosion rate
Current density
Steel corrosion

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10.13374/j.issn1001-053x.2014.08.013

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title = "Effects of AC current density on the corrosion behavior of X65 steel in carbonate/bicarbonate solutions",

abstract = "The effects of AC current density on the corrosion behavior of X65 steel in concentrated carbonate/bicarbonate solutions were studied by potentiodynamic polarization curve measurement, immersion testing and the surface characterization technique. When the AC current density increases, the passive region significantly narrows, the pitting potential negatively shifts, the passive current density increases, and the corrosion of X65 steel accelerates. At low AC current density (<100 A·m-2) the passive current density, the pitting corrosion degree and the corrosion rate slightly increase with the increasing of AC current density, but at high AC current density (≥100 A·m-2), they increase rapidly.",

keywords = "AC electric field, Bicarbonates, Carbonates, Corrosion rate, Current density, Steel corrosion",

author = "Min Zhu and Du, \{Cui Wei\} and Li, \{Xiao Gang\} and Liu, \{Zhi Yong\} and Zhao, \{Tian Liang\} and Qiong Li and Jia, \{Jing Huan\}",

year = "2014",

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doi = "10.13374/j.issn1001-053x.2014.08.013",

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issn = "1001-053X",

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TY - JOUR

T1 - Effects of AC current density on the corrosion behavior of X65 steel in carbonate/bicarbonate solutions

AU - Zhu, Min

AU - Du, Cui Wei

AU - Li, Xiao Gang

AU - Liu, Zhi Yong

AU - Zhao, Tian Liang

AU - Li, Qiong

AU - Jia, Jing Huan

PY - 2014/8/1

Y1 - 2014/8/1

N2 - The effects of AC current density on the corrosion behavior of X65 steel in concentrated carbonate/bicarbonate solutions were studied by potentiodynamic polarization curve measurement, immersion testing and the surface characterization technique. When the AC current density increases, the passive region significantly narrows, the pitting potential negatively shifts, the passive current density increases, and the corrosion of X65 steel accelerates. At low AC current density (<100 A·m-2) the passive current density, the pitting corrosion degree and the corrosion rate slightly increase with the increasing of AC current density, but at high AC current density (≥100 A·m-2), they increase rapidly.

AB - The effects of AC current density on the corrosion behavior of X65 steel in concentrated carbonate/bicarbonate solutions were studied by potentiodynamic polarization curve measurement, immersion testing and the surface characterization technique. When the AC current density increases, the passive region significantly narrows, the pitting potential negatively shifts, the passive current density increases, and the corrosion of X65 steel accelerates. At low AC current density (<100 A·m-2) the passive current density, the pitting corrosion degree and the corrosion rate slightly increase with the increasing of AC current density, but at high AC current density (≥100 A·m-2), they increase rapidly.

KW - AC electric field

KW - Bicarbonates

KW - Carbonates

KW - Corrosion rate

KW - Current density

KW - Steel corrosion

UR - https://www.scopus.com/pages/publications/84907218264

U2 - 10.13374/j.issn1001-053x.2014.08.013

DO - 10.13374/j.issn1001-053x.2014.08.013

M3 - 文章

AN - SCOPUS:84907218264

SN - 1001-053X

VL - 36

SP - 1077

EP - 1081

JO - Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing

JF - Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing

IS - 8

ER -

Effects of AC current density on the corrosion behavior of X65 steel in carbonate/bicarbonate solutions

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Keywords

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