Accelerating role of microbial film on soil corrosion of pipeline steel

Zhou, Zhaofen; Wu, Tangqing; Liu, Meng; Wang, Binbin; Liu, Cong; Yin, Fucheng

doi:10.1016/j.ijpvp.2021.104395

Cited by 23 publications

(9 citation statements)

References 39 publications

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“…16 The soil is a type of complicated system in terms of composition and property; therefore, the corrosion resistance of the metal can be improved compared with the simulated soil solution. 46,47 The composition and state of the soil pore solution near the metal surface also affect the soil corrosion process. Specically, under aerobic conditions, the main reduced mediators that affect the corrosion behavior are pore solution and oxygen.…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

Corrosion behavior and mechanism of X80 steel in silty soil under the combined effect of salt and temperature

Bai

Han

et al. 2022

RSC Adv.

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Section: Electrochemical Characterizationmentioning

confidence: 99%

Corrosion behavior and mechanism of X80 steel in silty soil under the combined effect of salt and temperature

Bai

Han

et al. 2022

RSC Adv.

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“…Pada kondisi ekstrim yang diamati di lingkungan anoksik, menunjukkan bahwa proses biologi memainkan peran penting dalam korosi besi dan baja [7]. Dilaporkan bahwa mikroorganisme sangat mempengaruhi reaksi korosi dalam kondisi anoksik, seperti korosi internal pada pipa terkubur [8] atau pipa bawah laut yang mengandung air dan/atau minyak [9]. Metabolisme mikroba memodifikasi kinetika reaksi korosi dan dapat menghasilkan sejumlah besar reaktan biokimia.…”

Section: Pendahuluan Mic (Microbiologically Influenced Corrosion)unclassified

Biokorosi Dan Teknologi Pencegahannya Di Industri Minyak Dan Gas

Royani¹,

Hanafi²,

Julistiono³

et al. 2022

metal.

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Biokorosi atau Microbiologically Influenced Corrosion (MIC) adalah salah satu bentuk korosi lokal yang dihasilkan dari mikroorganisme dan aktivitasnya yang mempunyai dampak negatif pada fasilitas di industri minyak dan gas. Keberadaan mikroorganisme dan aktivitasnya yang kompleks memainkan peranan penting dalam pembentukan biofilm dan produk korosi yang menyebabkan kerusakan peralatan. Meskipun beberapa teknik mitigasi dan pencegahan dalam usaha pengendalian mikroorganisme telah dilakukan, tinjauan tentang mitigasi korosi yang dipengaruhi mikroorganisme masih terbatas. Dalam tinjauan ini, dibahas jenis mikroorganisme terkait biokorosi, pembentukan biofilm, teknik deteksi dan evaluasi mikroorganisme, teknologi pencegahan dan pengendalian mikroorganisme di industri minyak dan gas. Perkembangan teknologi terkini pengendalian mikroorganisme di industri lainnya juga turut dibahas.

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“…However, a large number of pitting holes are observed on the surface of coupled weld metal and base metal after 96 h immersion, indicating the uneven corrosion is aggravated. It is worth noting that some pitting holes are easily connected to form corrosion cracks [9]. In addition, these pitting holes are all located around the martensite/austenite constituents.…”

Section: Corrosion Morphologiesmentioning

confidence: 99%

“…For the pipeline steels exposed to the external soil in the process of energy transportation, the corresponding electrochemical corrosion and stress corrosion are presented [9,10]. The corrosion behaviors depend highly on the solution components, microorganism concentration, applied stress, pH, temperature and so on [6,[11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…The corrosion behaviors depend highly on the solution components, microorganism concentration, applied stress, pH, temperature and so on [6,[11][12][13][14][15]. When the pipeline steel is immersed in the near-neutral solution, the passivation phenomenon is not presented and its corrosion products are relatively loose, low in density, poor in protective effect on the substrate [9,16]. In engineering applications, cathodic protection is used to inhibit the anodic dissolution of metals.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Galvanic corrosion of X80 pipeline steel double‐sided submerged arc welded joints in simulated near‐neutral soil solution

Wang

Zhao

Wang

et al. 2022

Materialwissenschaft Werkst

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The corrosion behaviors of double‐sided submerged arc welded joints in X80 pipeline steel with or without coupling were studied in simulated near‐neutral soil solution. The galvanic effect in the welded joint was evaluated by corrosion morphology, corrosion depth, and electrochemical measurements. When the weld metal (WM), heat affected zone (HAZ) and base metal (BM) samples were immersed in the solution isolated, pitting holes occurred around the martensite/austenite constituents in the weld metal and base metal samples, which was mainly due to the preferential corrosion of ferrite. However, no pitting holes occurred in the heat affected zone due to small specific surface area induced by the coarse martensite/austenite constituents. Polarization curves results showed that the corrosion current density of coupled base metal was 5 times larger than that of isolated base metal and the corrosion current density of isolated heat affected zone was three times larger than that of coupled heat affected zone after 48 h immersion. The corrosion current density of coupled heat affected zone was one order of magnitude lower than that of coupled weld metal and base metal. When the welded joint was exposed to an aggressive environment, the base metal samples were determined to be the most anodic zone while the heat affected zone was the most cathodic zone. The weld metal underwent little galvanic interaction, as its corrosion potential was close to the coupled potential. In addition, the galvanic effect among the welded joints decreased with the prolong of immersion time.

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Accelerating role of microbial film on soil corrosion of pipeline steel

Cited by 23 publications

References 39 publications

Corrosion behavior and mechanism of X80 steel in silty soil under the combined effect of salt and temperature

Corrosion behavior and mechanism of X80 steel in silty soil under the combined effect of salt and temperature

Biokorosi Dan Teknologi Pencegahannya Di Industri Minyak Dan Gas

Galvanic corrosion of X80 pipeline steel double‐sided submerged arc welded joints in simulated near‐neutral soil solution

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