Effect of sulfate-reducing bacteria on corrosion of X80 pipeline steel under disbonded coating in a red soil solution

Corrosion behavior and mechanism of X80 steel in silty soil under the combined effect of salt and temperature

“…In other words, the content of the effectively reduced mediator in the electrolyte has unique control over the corrosion process. 42 …”

Effect of Sulfate-Reducing Bacteria (SRB) on the Corrosion of Buried Pipe Steel in Acidic Soil Solution

“…After 11 days, the OCP of the steel further decreases in both abiotic and inoculated conditions. Additionally, the OCP of the specimen in the presence of SRB is more positive than that in the absence of SRB during the 14 days of immersion, which is mainly due to the fact that a biofilm and corrosion products were formed on the specimen, leading to a more positive potential [14,28].…”

“…Additionally, the XPS results further confirm the existence of sulfides in corr products, which is consistent with the EDS results. FeS is the typical metabolic su generated by SRB activities, which can be embedded in an SRB biofilm [14,35,36]. The composition of corrosion products formed on the specimen surface in the SRBcontaining solution was further analyzed by XPS.…”

“…Xu et al [13] reported that SRB corrosion is severe under a disbonded coating in a neutral soil solution. Wei et al [14] also demonstrated that the corrosion of steel was accelerated by SRB under a disbonded coating in an acidic soil solution. Various mechanisms of SRB corrosion have been proposed, e.g., cathodic depolarization theory (CDT) [15], corrosive metabolites theory (CMT) [16], and direct electron transfer theory (DETT) [17].…”

Special Issue: Environmental Corrosion of Metals and Its Prevention: An Overview and Introduction to the Special Issue

“…More recently, there have been increasing concerns about the role of environmental microbes on corrosion, which is known as microbiologically influenced corrosion (MIC) [4][5][6]. MIC has been considered a significant problem in the oil and gas industries [7,8].…”