Influence of thermal aging on sulfate-reducing bacteria (SRB)-influenced corrosion behaviour of 2205 duplex stainless steel

被引：79

作者：

Antony, P. J. ^{[1
,2
,3
]}

Raman, R. K. Singh ^{[2
,3
]}

Mohanram, R. ^{[4
]}

Kumar, Pradeep ^{[4
]}

Raman, R. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met Engn & Mat Sci, Powai 400076, India

[2] Monash Univ, Dept Mech Engn, Melbourne, Vic 3800, Australia

[3] Monash Univ, Dept Chem Engn, Melbourne, Vic 3800, Australia

[4] Naval Mat Res Lab, Bombay 421506, Maharashtra, India

来源：

CORROSION SCIENCE | 2008年 / 50卷 / 07期

关键词：

SRB; thermal aging; duplex stainless steel (DSS); SEM;

D O I：

10.1016/j.corsci.2008.03.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Microbiologically-influenced corrosion behaviour of thermally aged 2205 duplex stainless steel in comparison to the as-received material was studied by exposing the coupons for 40 days in chloride medium containing sulfate-reducing bacteria (SRB). Coupons exposed to the sterile medium were used as control. Electrochemical studies suggest a sharp drop in corrosion potential and increase in the anodic current for the coupons exposed to SRB. The austenite phase was found to be selectively attacked in presence of SRB for as-received material. Even though enhanced selective etching of austenite was noticed for thermally aged material, presence of actively corroding locations adjacent to the sigma-phase protect the austenite phase. Crown Copyright (c) 2008 Published by Elsevier Ltd. All rights reserved.

引用

页码：1858 / 1864

页数：7

共 31 条

[1]

[Anonymous], 1989, STANDARD METHODS EXA, V17th

[2] Corrosion of 2205 duplex stainless steel in chloride medium containing sulfate-reducing bacteria [J].