Corrosion behavior of steel A3 influenced by Thiobacillus ferrooxidans

被引：20

作者：

Li Song-Mei ^{[1
]}

Zhang Yuan-Yuan ^{[1
]}

Liu Jian-Hua ^{[1
]}

Yu Mei ^{[1
]}

机构：

[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2008年 / 24卷 / 09期

关键词：

Thiobacillus ferrooxidans; steel; corrosion;

D O I：

10.1016/S1872-1508(08)60063-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrochemical measurement and surface analysis methods were employed to investigate the corrosion behavior of steel A3 influenced by Thiobacillus ferrooxidans (T.f). Polarization curve results indicated that the presence of Thiobacillus ferrooxidans resulted in higher corrosion potential of the electrode and obviously accelerated the corrosion current density. Atomic force microscope (AFM) results showed that asymmetric biofilms adhered to the surface of steel A3 after 7 days of exposure. The scanning electronic microscopy (SEM) results showed that pitting appeared on the surface of steel A3 after 7 days of exposure in T.f solution, which was induced by the metabolism of bacteria and the morphology of the deposit. Pitting holes of steel A3 in T.f solution were deeper after 20 days of exposure. the presence of Thiobacillus ferrooxidans aggravated the localized corrosion of A3 steel.

引用

页码：1553 / 1557

页数：5

共 20 条

[1] Bacterial removal of sulphur from three different coals
Acharya, C
Kar, RN
Sukla, LB
[J]. FUEL, 2001, 80 (15) : 2207 - 2216
[2] The use of atomic force microscopy for studying interactions of bacterial biofilms with surfaces
Beech, IB
Smith, JR
Steele, AA
Penegar, I
Campbell, SA
[J]. COLLOIDS AND SURFACES B-BIOINTERFACES, 2002, 23 (2-3) : 231 - 247
[3] BREED RE, 1984, BERGEYS MANUAL DETER, P631
[4] CALDWELL DE, 1992, MICROB METHODS, V2, P249
[5] CHAO SH, 2005, GUANGDONG CHEM IND, V8, P30
[6] The formation of biofilms of iron-oxidising bacteria on pyrite
Crundwell, F
[J]. MINERALS ENGINEERING, 1996, 9 (10) : 1081 - 1089
[7] USE AND LIMITATIONS OF ELECTROCHEMICAL TECHNIQUES FOR INVESTIGATING MICROBIOLOGICAL CORROSION
DEXTER, SC
DUQUETTE, DJ
SIEBERT, OW
VIDELA, HA
[J]. CORROSION, 1991, 47 (04) : 308 - 318
[8] Influence of sulfate-reducing bacteria on alloy 625 and austenitic stainless steel weldments
Enos, DG
Taylor, SR
[J]. CORROSION, 1996, 52 (11) : 831 - 842
[9] FU YB, 2006, MAT DEV APPL, V21, P34
[10] Microcolony and biofilm formation as a survival strategy for bacteria
Johnson, Leah R.
[J]. JOURNAL OF THEORETICAL BIOLOGY, 2008, 251 (01) : 24 - 34

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