Corrosion characteristics of steel in seawater containing various chloride concentrations generated by electrochemical method

Kim, Seong-Jong; Jang, Seok-Ki

doi:10.1016/s1003-6326(10)60244-0

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…For polarization resistance determination, the linear potential was measured at a potential scanning rate of 0.5 mV/s from the open circuit potential (E OCP ) − 250 mV to E OCP + 250 mV until the E OCP of the working electrode attained a steady state [35]. The linear potential was scanned at the rate of 0.5 mV•s −1 from the corrosion potential (Ec, mV) to ±10 mV relative to Ec.…”

Section: Electrochemical Procedures and Measurementsmentioning

confidence: 99%

The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater

et al. 2020

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An understanding of the interaction of calcareous deposits and biofoulants on the corrosion performance of steel during the fouling stage is both interesting and necessary. So, the effects of these factors on Q235 carbon steel were investigated and discussed for 20 weeks under real ocean conditions. The results indicate that calcareous deposits are favorable for the attachment of marine microorganisms. However, macroorganisms prefer adhering directly to the substrate. The generations of calcareous deposits have priority over the biofilm attachment under the condition of cathodic protection. Calcareous deposits can prevent steel against corrosion for four weeks without cathodic protection.

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Section: Electrochemical Procedures and Measurementsmentioning

confidence: 99%

The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater

et al. 2020

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Influence of cooling treatment on corrosion behaviour of steel EH40 in extremely cold seawater

Li¹

2017

International Journal of Electrochemical Science

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The corrosion resistance of low-temperature steel EH40 with and without cooling treatment was investigated after salt spray testing under artificial conditions. The surface morphologies, chemical compositions, and corrosion rates of low-temperature steels EH40 were respectively analyzed by scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), and mass loss method. Electrochemical impedance spectroscopy (EIS) measurements were employed to examine the effect of the cooling treatment on the corrosion mechanism of EH40. The results showed that pitting corrosion occurred for the steels subjected to cooling treatment at -80℃, which further accelerated their corrosion behaviors. By contrast, a uniform corrosion pattern was observed on the steel samples unsubjected to the cooling treatment. In the latter case, the formation of passive films on the steels surfaces lowered the rates for further corrosion.

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Ballast Water Problem: Current Status and Expected Challenges

Güney

2022

Marine Science and Technology Bulletin

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Transporting non-native species in ballast tanks has been a major challenge over the years. The number of surviving species in the host environment is quite small compared to those of all introduced. However, even a single species can cause great harm to the environment, economy, and public health. Ballast water treatment issues are difficult and complex as the performance of the treatment is highly affected by the variable characteristics of the seawater. In addition, targeted organisms are in a wide spectrum. The International Convention on the Control and Management of Ship Ballast Water and Sediments requires ships to manage ballast water with a Type Approved System in compliance with the Ballast water discharge standard defined in the Convention. The Ballast Water Management Systems Approval (G8) Guide was revised in 2016 and accepted as the BWMS Code (Ballast Water Management Systems Approval Code) as the mandatory regime in 2018. According to the implementation schedule of this mandatory approval regime, the ballast water management system installed on or after 28 October 2020 must be type-approved according to the IMO’s revised G8 requirements. Several systems use different methods with their limitations. However, the ballast water problem does not seem to end only with the installation of the systems on ships. Although substantial international progress has been made in ballast water management (both technically and regulatory), there are still several issues regarding effectiveness, compliance monitoring, and the environment.

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Corrosion characteristics of steel in seawater containing various chloride concentrations generated by electrochemical method

Cited by 4 publications

References 6 publications

The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater

The Interaction of Biofoulants and Calcareous Deposits on Corrosion Performance of Q235 in Seawater

Influence of cooling treatment on corrosion behaviour of steel EH40 in extremely cold seawater

Ballast Water Problem: Current Status and Expected Challenges

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