Effect of marine Pseudoalteromonas sp. on the microstructure and corrosion behaviour of 2205 duplex stainless steel

Moradi, Mehrdad; Song, Zhenlun; Yang, Linjing; Jiang, Jianjun; He, Jian

doi:10.1016/j.corsci.2014.03.018

Cited by 83 publications

(28 citation statements)

References 31 publications

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“…Liu (2014) found that the 2205 DSS was susceptible to MIC, and the 2205 DSS pipe on board a new yacht failed due to an extremely high corrosion rate (40 mm year −1 ). Moradi et al (2014) found that a high concentration of chloride ion was present in the biofilm structure, leading to a loss of the amount of Cr in 2205 DSS underneath the biofilm and causing pitting corrosion.…”

Section: Introductionmentioning

confidence: 98%

“…For a super duplex SS (SDSS), the value of PREN is up to 40-45 (Elhoud et al 2010). When exposed to the marine environment, in spite of its high PREN value, DSS still suffers from severe localized corrosion, such as the pitting corrosion caused by microorganisms, known as microbiologically influenced corrosion (MIC) (Moradi et al 2014). Liu (2014) found that the 2205 DSS was susceptible to MIC, and the 2205 DSS pipe on board a new yacht failed due to an extremely high corrosion rate (40 mm year −1 ).…”

Section: Introductionmentioning

confidence: 99%

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Laboratory investigation of the microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel in the presence of an aerobic marinePseudomonas aeruginosabiofilm

Xia

Yang

et al. 2015

Biofouling

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The microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel (2205 Cu-DSS) against an aerobic marine Pseudomonas aeruginosa biofilm was investigated. The electrochemical test results showed that Rp increased and icorr decreased sharply after long-term immersion in the inoculation medium, suggesting that 2205 Cu-DSS possessed excellent MIC resistance to the P. aeruginosa biofilm. Fluorescence microscope images showed that 2205 Cu-DSS possessed a strong antibacterial ability, and its antibacterial efficiency after one and seven days was 7.75% and 96.92%, respectively. The pit morphology comparison after 14 days between 2205 DSS and 2205 Cu-DSS demonstrated that the latter showed a considerably reduced maximum MIC pit depth compared with the former (1.44 μm vs 9.50 μm). The experimental results suggest that inhibition of the biofilm was caused by the copper ions released from the 2205 Cu-DSS, leading to its effective mitigation of MIC by P. aeruginosa.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Laboratory investigation of the microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel in the presence of an aerobic marinePseudomonas aeruginosabiofilm

Xia

Yang

et al. 2015

Biofouling

View full text Add to dashboard Cite

show abstract

“…Several mechanisms and models have been proposed for interpreting impedance spectra on a passive metal surface . The model of Figure was selected to fit the experiment, assuming that the passive film did not totally cover the metal and cannot be considered as a homogeneous layer but rather as a defective layer.…”

Section: Resultsmentioning

confidence: 99%

Effect of solution annealing on the microstructure evolution and corrosion behavior of 2205 duplex stainless steel

Zhang

Lin

et al. 2018

Materials & Corrosion

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The effects of solution annealing temperature and isothermal time on the phase composition evolution and corrosion behavior were investigated by employing energy dispersive spectrometry, potentiodynamic polarization measurements, electrochemical impedance spectroscopy, and Mott–Schottky analysis. The pit morphologies were observed by a digital VHX‐5000 with a visible 3D microscopy system. The highest corrosion resistance and most stable passive films were obtained for specimen solution annealing at 1075 °C. Additionally, the solution time had a significant influence on the microstructure evolution and corrosion resistance of the duplex stainless steel. The largest impedance values were exhibited, revealing the best stability with a superior corrosion resistance of the films. The depth and size of pits that occurred on austenite were smaller than those on ferrite. The phase proportion on the microstructure and redistribution of the alloying elements caused by duplex interdiffusion solution annealing simultaneously affected the density of defects and the stability of the passive film, which determined the corrosion resistance. However, the semiconductor properties of the passive films were not affected.

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“…EIS measurements were used to evaluate how the biofilms influenced the corrosion rate of steel in different corrosion media [16]. Fig.5 shows the EIS results of specimens exposed to different systems.…”

Section: Electrochemical Impedance Measurementsmentioning

confidence: 99%

Effects of Iron-Oxidizing Bacteria on Carbon Steel in Oilfield Produced Water

Liu

Zhang

et al. 2014

ECS Trans.

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The effects of iron-oxidizing bacteria (IOB) on the corrosion of carbon steel in oilfield produced water was investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), weight loss and electrochemical measurements including open-circuit potential (OCP), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization curve measurements. SEM morphologies showed that the biofilm was mainly composed of corrosion products, extracellular polymeric substances (EPS) and little IOB. Additionally, without IOB, the corrosion products were only iron oxides. EIS indicated that the integrity of biofilm on the specimen surface changed with time and the biofilm removed partly at later stage. Potentiodynamic polarization curves indicated that IOB mainly influenced the cathodic process at later stage, and enhanced local corrosion of specimen.

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Effect of marine Pseudoalteromonas sp. on the microstructure and corrosion behaviour of 2205 duplex stainless steel

Cited by 83 publications

References 31 publications

Laboratory investigation of the microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel in the presence of an aerobic marinePseudomonas aeruginosabiofilm

Laboratory investigation of the microbiologically influenced corrosion (MIC) resistance of a novel Cu-bearing 2205 duplex stainless steel in the presence of an aerobic marinePseudomonas aeruginosabiofilm

Effect of solution annealing on the microstructure evolution and corrosion behavior of 2205 duplex stainless steel

Effects of Iron-Oxidizing Bacteria on Carbon Steel in Oilfield Produced Water

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