Effects of sulphate-reducing bacteria on crevice corrosion in X70 pipeline steel under disbonded coatings

Xu, Chen; Wang, Guanfu; Gao, Fengjiao; Wang, Yanliang; He, Chuan

doi:10.1016/j.corsci.2015.06.015

Cited by 85 publications

(27 citation statements)

References 34 publications

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“…1), multiple corrosive ulcers caused by the influence of biocorrosion are shown. Such defects are typical damage to the metal due to the formation of local sulfide deposits and microorganism colonies in the ground electrolyte in the presence of hydrogen sulfide of biogenic origin on the surface [6,9]. The unevenness of the surface damage should be noted, which confirms the localization of corrosion processes.…”

Section: Introductionmentioning

confidence: 82%

Influence of soil microorganisms on metal corrosion of underground pipelines

Полутренко

Maruschak

Tymoshenko

et al. 2018

Koroze a Ochrana Materialu

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There have been revealed and summarized the regularities in biocorrosion of steel 17G1S-U, which is traditionally used for manufacturing oil and gas mains. The basic regularities of biocorrosion processes in the 17G1S-U pipe steel under the influence of SRB Desulfovibrio Sp. strains Kyiv-10 was obtained by weight-loss testing and surface analysis techniques. Effective inhibitors are proposed, which allow protecting steel 17G1S-U against the development of anaerobic corrosion under the influence of sulfate-reducing bacteria (SRB). The effectiveness of inhibitors is estimated by the degree of their protective effect. The porous structure of the surface film contributes to the initiation of localized corrosion. Damage analysis of the specimen surface corroded under different test conditions was performed.

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Section: Introductionmentioning

confidence: 82%

Influence of soil microorganisms on metal corrosion of underground pipelines

Полутренко

Maruschak

Tymoshenko

et al. 2018

Koroze a Ochrana Materialu

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“…Among the various types of micro-organisms, SRB are considered the major bacterial group responsible for microbial corrosion under anaerobic conditions [3,4]. Several studies have been conducted to investigate SRB-induced corrosion of iron substrate, and SRB are widely accepted to play a crucial role in the anaerobic MIC of iron, low-alloy steel, and stainless steel [5,6,7,8,9,10,11,12,13,14,15,16,17]. Various mechanisms explain the enhanced corrosion caused by SRB.…”

Section: Introductionmentioning

confidence: 99%

Inhibitive Properties of Benzyldimethyldodecylammonium Chloride on Microbial Corrosion of 304 Stainless Steel in a Desulfovibrio desulfuricans-Inoculated Medium

Hsu

Chen

et al. 2019

Materials

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Biocides are frequently used to control sulfate-reducing bacteria (SRB) in biofouling. The increasing restrictions of environmental regulations and growing safety concerns on the use of biocides result in efforts to minimize the amount of biocide use and develop environmentally friendly biocides. In this study, the antimicrobial activity and corrosion inhibition effect of a low-toxic alternative biocide, benzyldimethyldodecylammonium chloride (BDMDAC), on a 304 stainless steel substrate immersed in a Desulfovibrio desulfuricans (D. desulfuricans)-inoculated medium was examined. Potentiodynamic polarization curves were used to analyze corrosion behavior. Biofilm formation and corrosion products on the surfaces of 304 stainless steel coupons were examined using scanning electron microscopy (SEM), energy-dispersive X-ray spectrum, and confocal laser scanning microscopy (CLSM). Results demonstrated that this compound exhibited satisfactory results against microbial corrosion by D. desulfuricans. The corrosion current density and current densities in the anodic region were lower in the presence of BDMDAC in the D. desulfuricans-inoculated medium. SEM and CLSM analyses revealed that the presence of BDMDAC mitigated formation of biofilm by D. desulfuricans.

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“…There were some cases, when bacteria present in the medium resulted in reduced efficacy of anti-corrosion protection measures. For example, downclassing of steel E cor in the presence of SRB can lead to such effect, for in this case, cathode polarisation value decreases in naked lengths or sites of full delamination of insulation coating on gas pipeline being protected [12,13].…”

mentioning

confidence: 99%

Assessment of inhibiting features of some commercial bactericides

2018

Int. J. Corros. Scale Inhib.

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The study deals with bacteriological and anti-corrosion features of three domestic bactericidal corrosion inhibitors (CI) in presence of sulphate-reducing bacteria in an oxygen-depleted and CO 2-containing nutritent medium. Efficacy of compositions under study in both inhibiting bacterial growth in an environment and decreasing total corrosion rate in structural steel was measured experimentally. Particular attention in discussion of results was paid to applicability conditions of optical evaluation method for bactericidal features of additives.

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Effects of sulphate-reducing bacteria on crevice corrosion in X70 pipeline steel under disbonded coatings

Cited by 85 publications

References 34 publications

Influence of soil microorganisms on metal corrosion of underground pipelines

Influence of soil microorganisms on metal corrosion of underground pipelines

Inhibitive Properties of Benzyldimethyldodecylammonium Chloride on Microbial Corrosion of 304 Stainless Steel in a Desulfovibrio desulfuricans-Inoculated Medium

Assessment of inhibiting features of some commercial bactericides

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