Study of corrosion behavior and mechanism of carbon steel in the presence of Chlorella vulgaris

“…4(b) shows the O 1s X-ray photoelectron spectra used to analyze the binding form of oxygen. Based on deconvolution of the peaks, it was determined that oxygen is present as Fe 2 O 3 (530.2 eV [18]) and FeOOH (531.5 eV [19]). Fig.…”

Section: Resultsmentioning

confidence: 99%

Effect of Synthesis Temperature on the Composition of Electrolytic Iron Phosphide

Kim¹,

Shin²

2018

J. Electrochem. Sci. Technol

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In this study, we investigated the composition of an electrolytic Fe phosphide at different synthesis temperatures. We found that the ratio of Fe in the electrodeposit increases with synthesis temperature, whereas the oxygen content introduced into the electrodeposit by the atmospheric oxidation of Fe decreases. The aim of this study was to identify the reason for this effect. For this purpose, the ratio of Fe and P in the electrodeposits prepared at different temperatures was analyzed in depth. In addition, the types and ratios of Fe phosphide phases were considered. It was proved that with increase in temperature, a significant amount of Fe reacted with P to form Fe phosphide phases, and consequently, the amount of residual pure Fe that would react directly with oxygen decreased.

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“…Cote et al found that the formation of ferrous phosphate layer could inhibit the corrosion of carbon steel in a phosphate containing environment. But Liu et al pointed out that the high DO concentration could lead to the transformation of insoluble ferrous phosphate into soluble ferric phosphate, promoting the corrosion process, which is in good agreement with the present results. Both the results of R ct (Figure B) and weight loss (Figure ) revealed the stability of the corrosion rate and the result of R f (Figure A) also suggested that the formation of corrosion products was a slow process.…”

Section: Discussionmentioning

confidence: 99%

“…Because the rate of photosynthesis was linked with illumination intensity, the open‐circuit potential of SS fluctuated from day to night . For metallic materials without a stable passive layer, high DO concentration could accelerate the corrosion through breaking the protective corrosion products . Since aerogenic and aerobic microorganisms cooperated harmoniously in nature, how about their impacts on corrosion?…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Q235 carbon steel influenced by the introduction of aerogenic and aerobic bacteria

Tan

Zhang

et al. 2018

Materials & Corrosion

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Corrosion of carbon steel is investigated in the presence of Synechococcus sp. (S. sp., an aerogenic strain) with or without the coexistence of Pseudoalteromonas sp. (P. sp., an aerobic strain). Results of electrochemical and weight loss measurements suggest that the corrosion of carbon steel is continuous in S. sp. containing media while it is inhibited initially and accelerated finally in the coexistence of S. sp. and P. sp. This variation in corrosion rate is believed to be closely related to the difference in the growth and metabolism of two strains in different media. In media containing S. sp. alone, the slow reproduction of S. sp. leads to the relatively stable dissolved oxygen (DO) concentration and the continuous corrosion. In the case of S. sp. + P. sp., P. sp. consume DO and form protective biofilm at the initial stage, and then the death of P. sp. and the rapid reproduction of S. sp. cause the increase of DO concentration and the formation of porous corrosion products, leading to the change of corrosion rate.

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Study of corrosion behavior and mechanism of carbon steel in the presence of Chlorella vulgaris

Cited by 99 publications

References 40 publications

Investigation of microbiologically influenced corrosion of high nitrogen nickel-free stainless steel by Pseudomonas aeruginosa

Investigation of microbiologically influenced corrosion of high nitrogen nickel-free stainless steel by Pseudomonas aeruginosa

Effect of Synthesis Temperature on the Composition of Electrolytic Iron Phosphide

Corrosion of Q235 carbon steel influenced by the introduction of aerogenic and aerobic bacteria

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