Comparison of 304 SS, 2205 SS, and 410 SS Corrosion by Sulfate-Reducing Desulfovibrio ferrophilus

Junlei Wang,Mazen A Saleh,Suchada Punpruk,Magdy El-Said Mohamed,Pruch Kijkla,Sith Kumseranee,Hongfang Liu,Tingyue Gu,Liviu Mitu

doi:10.1155/2021/3268404

Abstract

Three types of stainless steel (304 SS, 410 SS, and 2205 SS) were evaluated for their corrosion behaviors in microbiologically influenced corrosion (MIC) by Desulfovibrio ferrophilus strain IS5, a relatively new and very corrosive sulfate-reducing bacteria (SRB) strain. The incubation lasted for 7 days in enriched artificial seawater at 28°C and the results showed that 410 SS had a rather large weight loss (6.2 mg/cm2) and a maximum pit depth (118 µm), but 2205 SS and 304 SS did not suffer from significant weight loss or pitting. Electrochemical tests indicated that 2205 SS was slightly more resistant to SRB MIC than 304 SS, while 410 SS was far less resistant.

Highlights

Stainless steel is widely used in various industries. e typical austenitic stainless steel such as 304 SS is widely used in pipelines and power plants because of its good ductility, wear resistance, and corrosion resistance [1, 2]
sulfatereducing bacteria (SRB) Microbiologically influenced corrosion (MIC) of SS belongs to EETMIC [21, 32]
After 7 days, 304 SS and 2205 SS yielded undetectable weight loss, while 410 SS had a rather large weight loss of 6.2 mg/cm2. e higher sessile cell count for 410 SS contributed to its large weight loss, but the metallurgical properties likely played a much bigger role

Summary

Introduction

Stainless steel is widely used in various industries. e typical austenitic stainless steel such as 304 SS is widely used in pipelines and power plants because of its good ductility, wear resistance, and corrosion resistance [1, 2]. 2205 SS is duplex stainless steel with a mixture of austenitic and delta-ferritic phases [4] It is widely used in heat exchanger pipes, pressure vessels, and marine engineering [5, 6]. MIC is widespread in the oil and gas industry, marine systems, and water cooling systems, involving different kinds of bacteria. Various microorganisms such as bacteria including sulfatereducing bacteria (SRB) and acid-producing bacteria (APB), iron-oxidizing bacteria (IOB), nitrate-reducing bacteria (NRB), fungi, and methanogens (archaea) have been reported to lead to serious corrosion by their metabolic activities in different environments [11,12,13,14,15,16,17]

Methods

Results

Conclusion