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Preliminary studies on microbial induced corrosion of ferrous materials (EN-8 and 411143 steels) in the presence of Acidithiobacillus ferrooxidans

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Title Preliminary studies on microbial induced corrosion of ferrous materials (EN-8 and 411143 steels) in the presence of Acidithiobacillus ferrooxidans
 
Creator Sarma, GVS
Raju, GMJ
Padmavathi, MV
Babu, BK
 
Subject Acidithiobacillus ferrooxidans
Corrosion
Linear polarization
Microbes
 
Description 352-357
An electrochemical investigation was conducted to evaluate the corrosion behaviour of Iron alloys such as EN-8 and 411143 in absence and in presence of microbes Acidithiobacillus ferrooxidans. Linear polarization technique was employed to measure the Polarization Resistance and corrosion rates of two different ferrous metal samples. Polarization resistance (Rp) values of EN-8 were initially higher in the presence of Acidithiobacillus ferrooxidans than the values of 411143. Growth rate of the Acidithiobacillus ferrooxidans was more and sustained longer period with EN-8 in the presence of media than in the case of alloy ‗411143‘. It was observed that there was a 1.5 fold increase in corrosion rate in both the cases of EN-8 and 411143 in the presence of bacteria.High corrosion rates were recorded with the steel 41143 rather than the En-8 with respect to the optical density of the microbes. It was concluded that EN-8 was exhibited high resistance to the microbial attack.
 
Date 2023-04-12T11:29:14Z
2023-04-12T11:29:14Z
2023-04
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/61724
https://doi.org/10.56042/ijbb.v60i4.62772
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJBB Vol.60(04) [April 2023]