Corrosion of API X80 Steel Immersed in Seawater: Application of Electrochemical Noise Technique

López-Celvera, Sergio Antonio; Orozco-Cruz, Ricardo; Mejía-Sánchez, Edgar; Contreras-Cuevas, Antonio; Galván-Martínez, Ricardo

doi:10.1149/08401.0117ecst

Cited by 3 publications

(2 citation statements)

References 9 publications

(11 reference statements)

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“…However, there exists a special behavior at 3000 rpm where there isn't increased in the current density, in fact, the opposite behaviour happened, the i lim decreased. The behavior observed in the i lim at 3000 rpm is reported in research works carried out by Galván-Martínez (17) and Lopez-Celvera (18), where the decrease in the i lim is also observed.…”

Section: Resultssupporting

confidence: 69%

Cathodic Kinetics on High Resistance and Low Alloy Steels with Corrosion Inhibitors

et al. 2019

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This paper presents a study of the cathodic kinetics of high resistance and low carbon steel by the potentiodynamic cathodic polarization curves. In this study, the steel was immersed in a NACE brine with 50 ppm of corrosion inhibitor dissolved under turbulent flow conditions, room temperature and atmospheric pressure of the Veracruz Port. In order to simulate the hydrodynamic conditions, a Rotating Cylinder Electrode (RCE) with different rotation speeds was used. Electroactive species to be reduced were determined using the Eisenberg equation, as well as an analysis with dimensionless numbers was made in order to complement this study. The analysis of cathodic kinetics shown that the system under turbulent flow conditions is dominated by a mass transfer process, this is due to the diffusion of the oxygen from the bulk of the solution toward to metallic surface. According to the comparison of the experimental and the theoretical , attained by the Eisenberg equation, it can be established that the cathodic kinetics of the process is dominated by an oxygen reduction reaction.

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Section: Resultssupporting

confidence: 69%

Cathodic Kinetics on High Resistance and Low Alloy Steels with Corrosion Inhibitors

et al. 2019

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“…This reduces the H 2 S cytotoxicity in the broth, allowing better planktonic and sessile SRB growth, and thus leading to more severe MIC ( Jia et al, 2019a ). X80 carbon steel is widely used in many industries because of its low cost and ease of fabrication ( López-Celvera et al, 2018 ; Zhang et al, 2019 ; Pereira et al, 2021 ; Tian and Pan, 2021 ). However, X80 steel pipelines may suffer from both MIC and mechanical property degradation caused by MIC ( Alamri, 2020 ; Liu et al, 2022 ; Fu et al, 2022 ; Wasim and Djukic, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Mechanical property degradation of X80 pipeline steel due to microbiologically influenced corrosion caused by Desulfovibrio vulgaris

Yang

Guo

et al. 2022

Front. Bioeng. Biotechnol.

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Apart from pinhole leaks, MIC (microbiologically influenced corrosion) can also cause catastrophic failures such as pipe ruptures and support beam collapses due to mechanical property degradation or stress corrosion cracking. In this work, X80 pipeline steel dogbone coupons and square coupons were immersed in 150 ml broths containing Desulfovibrio vulgaris, a common corrosive sulfate reducing bacterium (SRB), for up to 14 days. The headspace volumes in the anaerobic bottles were increased from 150 ml to 200 ml and 300 ml to increase MIC severity. After 14 days of SRB incubation in ATCC 1249 culture medium with X80 coupons at 37°C, the sessile cell counts were 6.5 × 107 cells cm−2 for 150 ml, 2.3 × 108 cells cm−2 for 200 ml and 1.4 × 109 cells cm−2 for 300 ml headspace volumes, respectively owing to reduced H2S cytotoxicity in the broth with a larger headspace because it allowed more biogenic H2S to escape from the broth. Weight losses were 1.7 mg cm−2, 1.9 mg cm−2 and 2.3 mg cm−2 for 150 ml, 200 ml and 300 ml headspace volumes, respectively. The corresponding pit depths were 2.6 μm, 4.2 μm and 6.2 μm for 150 ml, 200 ml and 300 ml headspace volumes, respectively. Electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR) and potentiodynamic polarization results corroborated the increasing weight loss and pitting data trends as a result of increased headspace. Tensile testing of dogbone coupons after the 14-day SRB immersion test indicated that more severe MIC pitting led to a higher ultimate strain loss by up to 23% (300 ml headspace) compared to the abiotic control, while the ultimate strength losses for all headspace volumes were quite small (3% and lower).

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Stress corrosion cracking failure of X80 carbon steel U-bend caused by Desulfovibrio vulgaris biocorrosion

Li,

Yang,

et al. 2024

Journal of Materials Science & Technology

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Corrosion of API X80 Steel Immersed in Seawater: Application of Electrochemical Noise Technique

Cited by 3 publications

References 9 publications

Cathodic Kinetics on High Resistance and Low Alloy Steels with Corrosion Inhibitors

Cathodic Kinetics on High Resistance and Low Alloy Steels with Corrosion Inhibitors

Mechanical property degradation of X80 pipeline steel due to microbiologically influenced corrosion caused by Desulfovibrio vulgaris

Stress corrosion cracking failure of X80 carbon steel U-bend caused by Desulfovibrio vulgaris biocorrosion

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