Effect of sulfate-reduced bacteria on corrosion and electrochemical behaviors of LY6 Al alloy

Songmei Li; Jianhua Liu; Xin Liang; Xiaoli Jia

Effect of sulfate-reduced bacteria on corrosion and electrochemical behaviors of LY6 Al alloy

Songmei Li^*
, Jianhua Liu
, Xin Liang
, Xiaoli Jia

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

4 Scopus citations

Abstract

The open-circuit potential, potentiodynamic scanning polarization and electrochemical impedance spectroscopy (EIS) were employed to analyze the corrosion behaviors of LY6 Al alloy in solutions with and without sulfate reduced bacteria (SRB). It was shown that SRB accelerated the corrosion rate of LY6 Al alloy, and the corrosion rate of dynamic test sample was larger than that of static test sample. The open-circuit potential shifted negatively with the time. The shifted values are 0.26 V (SCE) and 0.16 V (SCE) in solution with and without SRB respectively. The range of apparent pitting potential obtained from anodic polarization is -0.6∼0.2 V (SCE). It was found that polarization resistance decreases with the increase of the time based on EIS results.

Original language	English
Pages (from-to)	1013-1016
Number of pages	4
Journal	Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics
Volume	30
Issue number	10
State	Published - Oct 2004

Keywords

Aluminium alloys
Electrochemical impedance spectroscopy
Sulfate-reducing bacteria

Cite this

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title = "Effect of sulfate-reduced bacteria on corrosion and electrochemical behaviors of LY6 Al alloy",

abstract = "The open-circuit potential, potentiodynamic scanning polarization and electrochemical impedance spectroscopy (EIS) were employed to analyze the corrosion behaviors of LY6 Al alloy in solutions with and without sulfate reduced bacteria (SRB). It was shown that SRB accelerated the corrosion rate of LY6 Al alloy, and the corrosion rate of dynamic test sample was larger than that of static test sample. The open-circuit potential shifted negatively with the time. The shifted values are 0.26 V (SCE) and 0.16 V (SCE) in solution with and without SRB respectively. The range of apparent pitting potential obtained from anodic polarization is -0.6∼0.2 V (SCE). It was found that polarization resistance decreases with the increase of the time based on EIS results.",

keywords = "Aluminium alloys, Electrochemical impedance spectroscopy, Sulfate-reducing bacteria",

author = "Songmei Li and Jianhua Liu and Xin Liang and Xiaoli Jia",

year = "2004",

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journal = "Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics",

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publisher = "Beijing University of Aeronautics and Astronautics (BUAA)",

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TY - JOUR

T1 - Effect of sulfate-reduced bacteria on corrosion and electrochemical behaviors of LY6 Al alloy

AU - Li, Songmei

AU - Liu, Jianhua

AU - Liang, Xin

AU - Jia, Xiaoli

PY - 2004/10

Y1 - 2004/10

N2 - The open-circuit potential, potentiodynamic scanning polarization and electrochemical impedance spectroscopy (EIS) were employed to analyze the corrosion behaviors of LY6 Al alloy in solutions with and without sulfate reduced bacteria (SRB). It was shown that SRB accelerated the corrosion rate of LY6 Al alloy, and the corrosion rate of dynamic test sample was larger than that of static test sample. The open-circuit potential shifted negatively with the time. The shifted values are 0.26 V (SCE) and 0.16 V (SCE) in solution with and without SRB respectively. The range of apparent pitting potential obtained from anodic polarization is -0.6∼0.2 V (SCE). It was found that polarization resistance decreases with the increase of the time based on EIS results.

AB - The open-circuit potential, potentiodynamic scanning polarization and electrochemical impedance spectroscopy (EIS) were employed to analyze the corrosion behaviors of LY6 Al alloy in solutions with and without sulfate reduced bacteria (SRB). It was shown that SRB accelerated the corrosion rate of LY6 Al alloy, and the corrosion rate of dynamic test sample was larger than that of static test sample. The open-circuit potential shifted negatively with the time. The shifted values are 0.26 V (SCE) and 0.16 V (SCE) in solution with and without SRB respectively. The range of apparent pitting potential obtained from anodic polarization is -0.6∼0.2 V (SCE). It was found that polarization resistance decreases with the increase of the time based on EIS results.

KW - Aluminium alloys

KW - Electrochemical impedance spectroscopy

KW - Sulfate-reducing bacteria

UR - https://www.scopus.com/pages/publications/11144245113

M3 - 文章

AN - SCOPUS:11144245113

SN - 1001-5965

VL - 30

SP - 1013

EP - 1016

JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

IS - 10

ER -

Effect of sulfate-reduced bacteria on corrosion and electrochemical behaviors of LY6 Al alloy

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