DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/12062

Title: Corrosion of 2205 duplex stainless steel weldment in chloride medium containing sulfate-reducing bacteria
Authors: ANTONY, PJ
RAMAN, RKS
KUMAR, P
RAMAN, R
Keywords: heat-affected zone
pitting corrosion
sigma-phase
microstructure
304-stainless-steel
adhesion
metal
precipitation
resistance
toughness
Issue Date: 2008
Publisher: SPRINGER
Citation: METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 39A(11), 2689-2697
Abstract: Influence of changes in microstructure caused due to welding on microbiologically influenced corrosion of a duplex stainless steel was studied by exposing the weldment and parent metal to chloride medium containing sulfate-reducing bacteria (SRB). Identically prepared coupons (same area and surface finish) exposed to sterile medium were used as the control. Etching-type attack was observed in the presence of SRB, which was predominant in the heat-affected zone (HAZ) of the weldment. The anodic polarization studies indicated an increase in current density for coupon exposed to SRB-containing medium as compared to that obtained for coupon exposed to sterile medium. The scanning electron microscopy (SEM) observations after anodic polarization revealed that the attack was preferentially in the ferrite phase of HAZ of the weldment, whereas it was restricted to the austenite phase of the parent metal.
URI: http://dx.doi.org/10.1007/s11661-008-9626-y
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12062
http://hdl.handle.net/10054/12062
ISSN: 1073-5623
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback