Distinguishing two different microbiologically influenced corrosion (MIC) mechanisms using an electron mediator and hydrogen evolution detection

Wang, Di; Liu, Jialin; Jia, Ru; Dou, Wenwen; Punpruk, Suchada; Li, Yong; Gu, Tingyue

doi:10.1016/j.corsci.2020.108993

Cited by 119 publications

(53 citation statements)

References 45 publications

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“…In fact, SRB are used to increase the pH of acid mine drainage for exactly the same reason as demonstrated here (Bai et al, 2013). The above 7.00 pH values in Figure 10 also suggest that acid attack and H 2 S attack were not important contributors to the MIC in this work (Wang et al, 2020).…”

Section: Electrochemical Tests Using Square Couponsmentioning

confidence: 56%

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Carbon Source Starvation of a Sulfate-Reducing Bacterium–Elevated MIC Deterioration of Tensile Strength and Strain of X80 Pipeline Steel

et al. 2021

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It is known that starved sulfate-reducing bacterial biofilms corrode carbon steel more aggressively because they use electrons from elemental iron oxidation as an alternative source of energy. This work used carbon source starvation to vary MIC (microbiologically influenced corrosion) severity for studying subsequent MIC impacts on the degradation of X80 carbon steel mechanical properties. X80 square coupons and dogbone coupons were immersed in ATCC 1249 culture medium (200 ml in 450-ml anaerobic bottles) inoculated with Desulfovibrio vulgaris for 3-day pre-growth and then for an additional 14 days in fresh media with adjusted carbon source levels for starvation testing. After the starvation test, the sessile cell counts (cells/cm2) on the dogbone coupons in the bottles with carbon source levels of 0, 10, 50, and 100% (vs that in the full-strength medium) were 8.1 × 106, 3.2 × 107, 8.3 × 107, and 1.3 × 108, respectively. The pit depths from the X80 dogbone coupons were 1.9 μm (0%), 4.9 μm (10%), 9.1 μm (50%), and 6.4 μm (100%). The corresponding weight losses (mg/cm2) from the square coupons were 1.9 (0%), 3.3 (10%), 4.4 (50%), and 3.7 (100%). The 50% carbon source level had the combination of carbon starvation without suffering too much sessile cell loss. Thus, both its pit depth and weight loss were the highest. The electrochemical tests corroborated the pit depth and weight loss trends. The tensile tests of the dogbone coupons after the starvation incubation indicated that sulfate-reducing bacteria (SRB) made X80 more brittle and weaker. Compared with the fresh (no-SRB-exposure) X80 dogbone coupon’s ultimate tensile strain of 13.6% and ultimate tensile stress of 860 MPa, the 50% carbon source level led to the lowest ultimate tensile strain of 10.3% (24% loss when compared with the fresh dogbone) and ultimate tensile stress of 672 MPa (22% loss). The 100% carbon source level had a smaller loss in ultimate tensile strain than the 50% carbon source level, followed by 10% and then 0%. Moreover, the 100% carbon source level had a smaller loss in ultimate tensile strength than the 50%, followed by 10% and 0% in a tie. This outcome shows that even in the 17-day short-term test, significant degradation of the mechanical properties occurred and more severe MIC pitting caused more severe degradation.

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Section: Electrochemical Tests Using Square Couponsmentioning

confidence: 56%

“…Table 5 shows that a higher carbon source level led to a higher concentration of H 2 . This H 2 trend is reasonable because it is known that D. vulgaris produces H 2 during lactate oxidation, and later it consumes H 2 when there is a shortage of organic carbon (Wang et al, 2020).…”

Section: Electrochemical Tests Using Square Couponsmentioning

confidence: 64%

Carbon Source Starvation of a Sulfate-Reducing Bacterium–Elevated MIC Deterioration of Tensile Strength and Strain of X80 Pipeline Steel

et al. 2021

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“…A telltale sign for H 2 S corrosion is hydrogen evolution, which is a very sensitive indicator in a sealed vial. It was found that, for an SRB culture, the hydrogen gas concentration profiles in the headspaces of sealed anaerobic vials were the same with and without carbon steel coupons [24]. us, the corrosion process did not generate hydrogen gas.…”

Section: Ph Valuesmentioning

confidence: 93%

“…Stainless steel coupons with a 1 cm × 1 cm unpainted top area were used for corrosion testing. Before testing, coupons were abraded by 180-, 400-, and 600-grit emery papers sequentially, then cleaned with 100% isopropanol, and sterilized under an UV lamp for 30 min [24]. After 7 days of incubation, coupons were taken out.…”

Section: Specimen Preparationmentioning

confidence: 99%

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

Wang

Liu

Kijkla

et al. 2021

Journal of Chemistry

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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.

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“…It is now known that H 2 S is not the culprit of SRB MIC of carbon steel when broth pH is near neutral, but rather extracellular electron transfer (EET) from elemental Fe(0) for sulphate reduction in energy production (Jia et al, 2019a). The two electrochemical half-reactions in EET-MIC of carbon steel by SRB below combined together is thermodynamically favourable (Wang et al, 2020),…”

Section: Examples Of Biocorrosion Against Various Materials In Different Settingsmentioning

confidence: 99%

Biocorrosion caused by microbial biofilms is ubiquitous around us

Dou

2020

Microbial Biotechnology

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Biocorrosion first surfaced in the scientific literature when Richard H. Gaines associated corrosion with bacterial activities in 1910. It is also known as microbiologically influenced corrosion (MIC). In general, it covers two scenarios. One is that microbes cause corrosion directly, which usually means microbes secrete corrosive metabolites or microbes harvest electrons from a metal for respiration to produce energy. In the second scenario, microbes are behind the initiation or acceleration of corrosion caused by a pre-existing corrosive agent such as water and CO 2 , by compromising the passive film (often a metal oxide film on a metal). MIC is caused by microbial biofilms. It is everywhere around us. This work dissects some notable examples with perspectives.

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Distinguishing two different microbiologically influenced corrosion (MIC) mechanisms using an electron mediator and hydrogen evolution detection

Cited by 119 publications

References 45 publications

Carbon Source Starvation of a Sulfate-Reducing Bacterium–Elevated MIC Deterioration of Tensile Strength and Strain of X80 Pipeline Steel

Carbon Source Starvation of a Sulfate-Reducing Bacterium–Elevated MIC Deterioration of Tensile Strength and Strain of X80 Pipeline Steel

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

Biocorrosion caused by microbial biofilms is ubiquitous around us

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