Anticorrosive non-crystalline coating prepared by plasma electrolytic oxidation for ship low carbon steel pipes

Ma, Chunsheng; Liu, Jian; Zhu, Xiaohua; Wang, Xue; Yan, Zhijun; Chen, Dong; Fu, Jingguo; Ma, Shuo

doi:10.1038/s41598-020-72787-w

Cited by 17 publications

(8 citation statements)

References 29 publications

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“…Q235 low carbon steel is widely used in petroleum production, [1] chemical processing, [2] shipbuilding industry, [3] and other industries because of its low cost, [4] good mechanical properties, [5] and high strength. [6] However, the corrosion resistance of Q235 low carbon steel is poor, [7] resulting in economic losses and environmental damage. Epoxy resin is widely used in the corrosion protection of low carbon steel.…”

Section: Introductionmentioning

confidence: 99%

Self‐healing corrosion‐resistant coatings based on fluorinated alkyl silane microcapsules

Wang

et al. 2022

Polymer Engineering & Sci

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In this study, microcapsules are prepared by in situ polymerization using the repairing agent fluorinated alkyl silane (FAS) as the core material and urea‐formaldehyde as the covering shell. Self‐healing coatings (FEP coatings) with repairing ability in water are prepared by adding FAS microcapsules in an epoxy resin matrix. The morphology, composition, and thermal properties of the microcapsules are studied. In addition, electrochemical impedance spectroscopy is used to study the barrier properties and self‐healing properties of the coating. The results show that FEP coating has good self‐healing ability, with the semiquantitative index of 105 Ω·cm2, which is greater than that of pure epoxy coating (EP coating). This is because that FAS leaked from the microcapsules reacts with water molecules to form a dense water‐insoluble film, which blocks the contact of corrosive ions with the substrate and inhibits the progress of metal corrosion. Moreover, the scratch width and depth results of the FEP coating after self‐healing also confirm the formation of the new film by FAS.

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Section: Introductionmentioning

confidence: 99%

Self‐healing corrosion‐resistant coatings based on fluorinated alkyl silane microcapsules

Wang

et al. 2022

Polymer Engineering & Sci

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“…Carbon steel has several attractive properties, such as high strength, good malleability, ductility, plasticity, easy forging, welding, and cutting, all combined with a relatively low cost [1][2][3] . Such characteristics make this metal proper to be applied in several sectors, such as in the cutting tool industry, in the manufacture of plates, sheets, bars, and tubes of the metallurgical industry, and civil construction [3][4][5] . However, despite its widespread use, carbon steel is not a perfect material, as it has low resistance to wear and corrosion.…”

Section: Introductionmentioning

confidence: 99%

“…Ma et al 3 , deposited a non-crystalline coating resistant to corrosion using PEO in an electrolyte composed of sodium silicate, sodium carbonate, and distilled water on low carbon steel Q235. The results of potentiodynamic polarization tests in NaCl 3.5% w/w demonstrated that there was a 78% reduction in the value of corrosion current density, I corr , in coated steel compared to uncoated steel.…”

Section: Introductionmentioning

confidence: 99%

“…Concerning the aforementioned techniques, most of them present as the main disadvantage the fact that the process develops at high temperatures 3,14,16,17 , limiting the treatment to heating resistant substrates. Also, the authors frequently report the presence of pores and cracks in PEO deposited coatings 1,3,14 , as well as adhesion problems and de-coating of the oxide layer formed on the treated metal 3 , characteristics that hinder the protection against corrosion.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Plasma Oxidation Treatment on Production of a SiOx/SiOxCyHz Bilayer to Protect Carbon Steel Against Corrosion

et al. 2021

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Because of its excellent properties, carbon steel is a material widely used in several sectors. However, it is easily corroded when exposed to the environment. Seeking to remedy this problem, the possibility of coating carbon steel with SiO x /SiO x C y H z films generated by deposition and oxidation in low-pressure plasmas was investigated. Specifically, the effects of excitation power of the oxidation plasma on layer thickness, chemical structure, elemental composition, and barrier properties of the obtained coatings were investigated. The coating of the steel with the SiO x C y H z film, generated by plasma in an atmosphere of hexamethyldisiloxane (HMDSO), increased the total resistance to the passage of electric current, measured by electrochemical impedance spectroscopy. However, under the condition of moderate power oxidation (50 W), the results point to the creation of a bilayer system with high resistance to electrochemical attack compared to the SiO x C y H z film, even though its thickness is less than this.

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“…bioactive glass for better osseointegration [12] or basalt mineral fibers for improved wear resistance [13]. It can also be used in technical fields to increase corrosive resistance of steel pipes [14]. Overall, the PEO is being actively exploited to introduce functional elements into coatings on biomaterials and beyond biomedical applications [15].…”

Section: Introductionmentioning

confidence: 99%

A New Solution for an Electrochemical Modification of Titanium Surface

Kyrylenko¹,

Oleshko²,

Warchoł³

et al. 2020

J. Nano- Electron. Phys.

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Dental/osseous implants manufactured of titanium (Ti) have become a routine and affordable method in medical practice. To increase the overall safety and longtime stability of the implants further, the sophisticated approaches have been investigated in order to supply the implants with the bioactive surface layers. They have to serve two purposes: to increase the osseointegration capacity of the implants and to reduce the chances of bacterial growth and formation of bacterial biofilms leading to periimplantitis. Plasma electrolytic oxidation (PEO) is becoming a promising method to introduce functionalized surface layers on a metal substrate. Various PEO protocols have been suggested in order to achieve better biocompatibility of the dental implants and to increase their resistance to bacterial infections. It was also suggested that the PEO layers could increase resistance to corrosion on the surfaces of metallic implants. The dynamic processes running on the surface of Ti during the PEO processing still require efforts to fully understand the molecular mechanisms of the formation of hard and porous oxide surface layers. We and others have already shown that addition of a chelating agent to the bath electrolyte leads to better outcomes in the morphology and functional characteristics of the implants. Here we report in depth characterization of the PEO parameters and the produced PEO surface layers using the bath electrolyte containing another widely used chelating agent, nitrilotriacetic acid (NTA) along with potassium phosphate and calcium formate. The results will contribute to further understanding the mechanisms of the PEO process and to establishing routine protocols for commercial exploitation of the PEO method.

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Anticorrosive non-crystalline coating prepared by plasma electrolytic oxidation for ship low carbon steel pipes

Cited by 17 publications

References 29 publications

Self‐healing corrosion‐resistant coatings based on fluorinated alkyl silane microcapsules

Self‐healing corrosion‐resistant coatings based on fluorinated alkyl silane microcapsules

Effect of Plasma Oxidation Treatment on Production of a SiOx/SiOxCyHz Bilayer to Protect Carbon Steel Against Corrosion

A New Solution for an Electrochemical Modification of Titanium Surface

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