The effect of magnetic field pretreatment on the corrosion behavior of carbon steel in static seawater

Zhao, Shuanzhu; Wang, Yaxin; Zhao, Yaohua; Sun, Xiaotong; Zhang, Huijuan; Piao, Hong‐Guang; Zhang, Yujiao; Huang, Yanliang

doi:10.1039/c9ra09079g

Cited by 13 publications

(5 citation statements)

References 43 publications

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“…This is because the electromagnetic field promotes the generation of ferric oxide in the solution, thereby reducing the concentration of iron ions and protecting the equipment and pipelines from corrosion. However, in electrochemical experiments, the occurrence of numerous oxidation-reduction reactions can lead to temporarily acidic or alkaline conditions in localized areas, promoting corrosion of metal equipment and pipelines, and increasing the concentration of iron ions in the solution [10,11]. The variation in chloride ions is closely related to the operation of the fan.…”

Section: Corrosion Of Iron Hanging Pieces In the Cooling Towermentioning

confidence: 99%

“…Water 2024, 16, x FOR PEER REVIEW 16 of 18 pipelines, and increasing the concentration of iron ions in the solution [10,11]. The variation in chloride ions is closely related to the operation of the fan.…”

Section: Corrosion Of Iron Hanging Pieces In the Cooling Towermentioning

confidence: 99%

mentioning

confidence: 99%

“…During the action of the electromagnetic field, a magnetic field gradient force is generated in pitting corrosion pits, with the maximum magnetic flux density produced at the edge of the pits. The gradient force acts on magnetic materials, attracting erosive ions to move outward, thereby slowing down the pitting corrosion process[11].•Disinfection and algae elimination principle: Microorganisms generally can only adapt and survive in an electric field strength of 130 eV/m. The electromagnetic field can cause the loss of metabolic function of "repair enzymes" in microbial cells, inhibiting cell activity, thereby disrupting the living biological field of microorganisms and causing the leakage of protoplasm from the cells, leading to death.…”

mentioning

confidence: 99%

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Experimental Study on the Combined Effect of Electromagnetic and Electrochemical Processes on Descaling and Anticorrosion

Zhang,

Wang,

et al. 2024

Water

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In this study, a circulating water experimental system was constructed to investigate the scale inhibition, scale removal, corrosion inhibition, and disinfection effects of industrial circulating water under the combined action of electromagnetic and electrochemical fields. The influence of these effects on water quality parameters and their scale inhibition and corrosion inhibition effects on hanging plate experiments were examined. Qualitative and quantitative analyses of scale samples were conducted using XRD (X-ray diffraction) and SEM (scanning electron microscopy), along with the evaluation of changes in water quality parameters (such as conductivity, hardness, Chemical Oxygen Demand (COD), turbidity, iron ions, and chloride ions) before and after the experiments. The results showed that after 360 h of circulation experiment, at a water temperature of 30 °C, electromagnetic field frequency of 1 kHz, electrochemical scale removal device voltage of 24 V, current of 10 A, and water flow rate of 0.6 m/s, the transformation of calcite to aragonite in CaCO3 scale samples occurred, with a 76.6% increase in aragonite content. Moreover, the conductivity decreased by 11.6%, hardness decreased by 42.0%, COD decreased by 59.7%, turbidity decreased by 48.1%, and chloride and iron ion concentrations decreased by 36.6% and 63.1%, respectively. The scale inhibition efficiency reached 53.8%, surpassing the effects of electromagnetic and electrochemical actions individually. These findings demonstrate that the combined action of electromagnetic and electrochemical fields can effectively enhance scale inhibition, scale removal, corrosion inhibition, and disinfection and algae removal effects.

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Section: Corrosion Of Iron Hanging Pieces In the Cooling Towermentioning

confidence: 99%

Section: Corrosion Of Iron Hanging Pieces In the Cooling Towermentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Experimental Study on the Combined Effect of Electromagnetic and Electrochemical Processes on Descaling and Anticorrosion

Zhang,

Wang,

et al. 2024

Water

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“…The Bode phase plot shows a single time constant in all samples. The EIS data were fitted with an equivalent electrical circuit [33,34] as shown in Figure 5c. It comprises solution resistance (R1), charge transfer resistance (R2), constant phase element (CPE) of electrical double layer, adsorption resistance (R3) and adsorption inductance (L).…”

Section: Electrochemical Behavior Analysismentioning

confidence: 99%

Role of Grain Size and Recrystallization Texture in the Corrosion Behavior of Pure Iron in Acidic Medium

Kar

Yilmaz

Τράκα

et al. 2023

Metals

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This work investigates the role of grain size and recrystallization texture in the corrosion behavior of pure iron in 0.1 M sulfuric acid solution. Annealing heat treatment was applied to obtain samples with different average grain sizes (26, 53 and 87 µm). Optical microscopy, X-ray diffraction and electron backscatter diffraction techniques were used to characterize the microstructure. The EBSD data analysis showed ferrite phase with no inclusions and very low geometrically necessary dislocation density, indicating strain-free grains constituting all samples. The crystallographic texture analysis of the samples revealed that the 26 µm grain size sample had a high volume fraction of {111} oriented grains parallel to the sample surface, while other samples exhibited nearly random crystallographic texture. The electrochemical results from potentiodynamic polarization and electrochemical impedance spectroscopy showed a decrease in corrosion resistance from 87 µm to 53 µm grain size sample and then an increase for the 26 µm grain size sample. This increase was attributed to the dominant effect of recrystallization texture on the corrosion behavior of the sample. The cathodic hydrogen evolution reaction kinetics was found to play a decisive role in the corrosion behavior of iron.

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Effect of gradient magnetic field on corrosion of carbon steel pipes in seawater pumped storage power plants

Zhang

Zhu²,

Sun³

et al. 2022

J Appl Electrochem

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The effect of magnetic field pretreatment on the corrosion behavior of carbon steel in static seawater

Abstract: Effect of magnetic field pretreatment on carbon steel corrosion behavior in seawater was investigated by electrochemical methods. This method can inhibit the corrosion behavior and is expected to provide a new way for marine anti-corrosion.

Cited by 13 publications

References 43 publications

Experimental Study on the Combined Effect of Electromagnetic and Electrochemical Processes on Descaling and Anticorrosion

Experimental Study on the Combined Effect of Electromagnetic and Electrochemical Processes on Descaling and Anticorrosion

Role of Grain Size and Recrystallization Texture in the Corrosion Behavior of Pure Iron in Acidic Medium

Effect of gradient magnetic field on corrosion of carbon steel pipes in seawater pumped storage power plants

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