Interaction of marine organisms on localized corrosion of 316L stainless steel in Dalian seawater

Chen, Wanbin; Wang, Mingyu; Li, Mingyu; Li, Kaiqiang; Huang, Yijia; Xu, Yunze

doi:10.1108/acmm-02-2023-2755

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…The steel plates were immersed about 0.5 m to 2.0 m below the low water line on the test platform to ensure full immersion. More details of the test platform were introduced in a previous study [9]. The test duration was 9 months, from January to October.…”

Section: Methodsmentioning

confidence: 99%

“…Crevice corrosion initiated at the edge of the shell base and then resumed inward, proposing that more severe corrosion occurs at barnacle edges due to IR drop. Chen found that the macro-fouling organisms that adhered to 316L stainless steel in the Dalian Sea area are mainly barnacles, ascidians, and mussels [9]. Localized corrosion was observed at both the barnacle edge and center.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Different Fouling Organisms on Corrosion Behavior of Carbon Steel in Dalian Seawater

Chen,

Wang,

Wang

et al. 2023

Metals

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Carbon steels are widely used in ocean engineering due to their cost effectiveness, ease of manufacture, and excellent weldability. However, the attachment of macro-fouling organisms in seawater poses a serious threat to the integrity of carbon steel structures. In this experiment, carbon steel plates were immersed in the Dalian Sea area from January to October to investigate the effects of macro-fouling on corrosion propagation. The electrochemical measurement indicated that the propensity for the corrosion of Q235B is ranked as ascidians > mussels > barnacles. The characterization results indicated that various marine organisms significantly influenced the corrosion behavior of Q235B carbon steel immersed in natural seawater. The colonization of barnacles inhibited corrosion at the barnacle central area, and the presence of barnacle covering caused crevice corrosion at the edges of the barnacle due to oxygen concentration cells. The presence of ascidians resulted in general corrosion due to the locally high conductivity and ion diffusion rate. A relatively compact rust layer, which exhibited localized defects, was observed beneath the mussels. Seawater had the ability to penetrate the rust layer through these defects, leading to the formation of pitting corrosion on the metal substrate.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Different Fouling Organisms on Corrosion Behavior of Carbon Steel in Dalian Seawater

Chen,

Wang,

Wang

et al. 2023

Metals

Self Cite

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Bending behaviour of surface corroded and perforated corroded steel tubes repaired by laser cladding additive manufacturing

Kang,

Song

2024

Thin-Walled Structures

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Study on the screening of marine beneficial bacteria and the inhibition of sulfate-reducing bacteria corrosion in marine oil field produced water

Wang,

Zhang,

et al. 2024

ACMM

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Purpose The purpose of this study is to provide ideas and theoretical guidance for green, environmentally friendly and efficient “bacteriostasis with bacteria” technology. Design/methodology/approach In this paper, a beneficial strain of bacteria was extracted and purified from marine mud. Weight-loss test, morphological observation and electrochemical test were used to systematically study the effect of sulfate-reducing bacteria (SRB)-induced corrosion inhibition on X65 steel in simulated offshore oil field production water. Findings The results showed that a beneficial strain was selected and identified as Vibrio alginolyticus. Under the condition of co-culture of SRB, the average corrosion rate of X65 steel was significantly reduced. In the mixed bacterial system, the surface of X65 steel samples was relatively flat, and the structure of biofilm and corrosion product film was dense. The number of corrosion pits, the average diameter and depth of corrosion pits were significantly reduced. The localized corrosion of X65 steel was significantly inhibited. Originality/value The complex and changing marine environment makes the corrosion problem of marine steel increasingly severe, and the microbiologically influenced corrosion (MIC) caused by SRB is particularly serious. The research and development of environmentally friendly corrosion protection technology is a long-term and difficult problem. The use of beneficial microorganisms to control MIC is a green and efficient anticorrosion measure. Compared with terrestrial microorganisms, marine microorganisms can adapt to complex environments, and their metabolites exhibit special biological activities. The use of marine beneficial bacteria can inhibit SRB activity to achieve the corrosion inhibition effect.

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Interaction of marine organisms on localized corrosion of 316L stainless steel in Dalian seawater

Cited by 3 publications

References 21 publications

Effects of Different Fouling Organisms on Corrosion Behavior of Carbon Steel in Dalian Seawater

Effects of Different Fouling Organisms on Corrosion Behavior of Carbon Steel in Dalian Seawater

Bending behaviour of surface corroded and perforated corroded steel tubes repaired by laser cladding additive manufacturing

Study on the screening of marine beneficial bacteria and the inhibition of sulfate-reducing bacteria corrosion in marine oil field produced water

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