Anodic plasma electrolytic deposition of composite coating on ferrous alloys with low thermal conductivity and high adhesion strength

Zhao, Chen; Sun, Jiayi; Nie, Xueyuan; Tjong, Jimi; Matthews, D.T.A.

doi:10.1016/j.surfcoat.2020.126081

Cited by 5 publications

(2 citation statements)

References 38 publications

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“…In addition, CPED is performed in electrolyte-containing SiC nanoparticles, which are readily dispersed in Al 2 O 3 to form Al 2 O 3 -SiC ceramics, accompanied by reactions (3), ( 4), ( 5), ( 6) and (7).…”

Section: Mechanism Analysis Of Sic Nanoparticles In Cped Processmentioning

confidence: 99%

Improvement of Structures and Properties of Al2O3 Coating Prepared by Cathode Plasma Electrolytic Deposition by Incorporating SiC Nanoparticles

Zhou

et al. 2022

Coatings

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A serious issue in the preparation of Al2O3 coatings by cathode plasma electrolytic deposition (CPED) is that the coatings have a porous structure, which is detrimental to their protective performance. Therefore, to address this problem, SiC nanoparticles are incorporated into the Al2O3 coating in this study. A series of Al2O3–SiC composite coatings are efficaciously prepared on the surface of 316L stainless steel by CPED. The microstructures, compositions and phase components of the composite coatings are characterized; the electrochemical corrosion resistance and tribological behavior are evaluated; and the mechanism of SiC nanoparticles in the coating formation process is discussed in detail. The results indicate that the Al2O3 coating prepared by CPED consists of α-Al2O3 and γ-Al2O3, and the former is the main crystalline phase. With the incorporation of SiC nanoparticles in the coating, the content of α-Al2O3 gradually decreases, almost disappearing, accompanied by an increase in γ-Al2O3 as the main crystalline phase. The incorporation of SiC nanoparticles significantly reduces the surface irregularity and roughness of Al2O3 coatings and remarkably improves the corrosion resistance and wear resistance of the Al2O3 coatings. The improvement in corrosion resistance and anti-wear properties can be explained by the fact that the SiC nanoparticles effectively weaken electrical breakdown and increase the compactness of the coatings.

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Section: Mechanism Analysis Of Sic Nanoparticles In Cped Processmentioning

confidence: 99%

Improvement of Structures and Properties of Al2O3 Coating Prepared by Cathode Plasma Electrolytic Deposition by Incorporating SiC Nanoparticles

Zhou

et al. 2022

Coatings

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show abstract

“…Plasma electrolytic oxidation process is a versatile surface treatment method that is utilised in various industrial sectors such as in automotive, aerospace, oil and gas industries [1][2][3][4][5][6][7]. Coating produced by this method is highly resistant to wear and corrosion [8,9].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of coating characteristics via improved plasma electrolytic oxidation set‐up

Sharizal

Bushroa²,

Zavareh³

et al. 2021

Materialwissenschaft Werkst

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The plasma electrolytic oxidation process involves high-temperature operations and exposed to corrosive chemicals. Thus it requires stringent experimental set-up to produce uniform and high-quality coatings. This study proposes an enhancement to the current plasma electrolytic oxidation experimental set up to improve: 1) electrode holder; 2) cathode-anode electrodes, and 3) water-cooling system. In this paper, the focus is dedicated to the first two items. For the first item, the redesigned electrode holder is developed using 3-dimensional software. For the second item, results due to cathode via stainless container as well as carbon electrode are discussed. The performance of the new set-up plasma electrolytic oxidation is compared with the old one by analysing the microstructure and the mechanical properties of titanium dioxide coatings formed on a titanium aluminium vanadium alloy substrate using both set-ups. Surface morphology shows that the coating produced using the new set-up is thicker, denser and has lower porosity as compared to the coating deposited using the old set-up. The mechanical properties of hardness and adhesive strengths of the coating are also improved in the new set-up. Thus, the use of this set-up is recommended for improved coating performance to produce a uniform coating having enhanced mechanical performance.

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Liquefaction of biomass by plasma electrolysis in alkaline condition

Zhang

et al. 2021

Renewable Energy

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Anodic plasma electrolytic deposition of composite coating on ferrous alloys with low thermal conductivity and high adhesion strength

Cited by 5 publications

References 38 publications

Improvement of Structures and Properties of Al2O3 Coating Prepared by Cathode Plasma Electrolytic Deposition by Incorporating SiC Nanoparticles

Improvement of Structures and Properties of Al2O3 Coating Prepared by Cathode Plasma Electrolytic Deposition by Incorporating SiC Nanoparticles

Enhancement of coating characteristics via improved plasma electrolytic oxidation set‐up

Liquefaction of biomass by plasma electrolysis in alkaline condition

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