Effect of cerium on the microstructure and anti-corrosion performance of Al-Zn coatings

Wang, Gaosong; Li, Haoran; Li, Peiyue; Li, Xinkui; Wang, Yanzhi

doi:10.1016/j.surfcoat.2023.130046

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…The presence of FePO 4 on the surface immersed in the sterile medium is identified on the P 2p spectrum (Figure 5(a1)), whilst FePO 4 and FeO peaks are clearly observed on the Fe 2p spectrum (Figure 5(a2)). These results corroborate that the corrosion products of the steel in the sterile medium are mainly FePO 4 and FeO [57]. After 18 days corrosion in the SRB medium, the fingerprints of FeSO 4 , FeS and FeS 2 are clearly identified on the XPS spectra (Figure 5(b1,b2)).…”

Section: Characterization Of Corrosion Morphologiessupporting

confidence: 80%

“…Figure 3 displays the potentiodynamic polarization curves of the steel after 4, 11, and 18 days of corrosion in the sterile medium and SRB mediums, respectively. Table 3 It has been well recognized that the larger the i corr , more susceptible to corrosion [57]. i corr of the steel increases gradually when being immersed in the sterile medium for 4, 11 and 18 days.…”

Section: Potentiodynamic Polarization Curvesmentioning

confidence: 99%

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Dual-Function Hybrid Coatings Based on Polytetrafluoroethylene and Cu2O for Anti-Biocorrosion and Anti-Wear Applications

Li,

et al. 2024

Coatings

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Corrosion and wear issues of motion components exposed to water-based corrosion mediums, e.g., naval vessels and oil extraction equipment, pose challenges for the lifespan and reliability of the motion systems. In this work, epoxy-based coatings modified with polytetrafluoroethylene (PTFE) and cuprous oxide (Cu2O) nanoparticles were prepared. The anti-corrosion performance of the coatings was comparatively investigated by electrical impedance spectroscopy and Tafel tests in sterile and sulphate-reducing bacteria (SRB) mediums. Moreover, the tribological behaviors of the coatings were examined under water lubrication conditions. Our results demonstrate that the epoxy coatings lower significantly the corrosion current density icorr and the charge transfer resistance of the electrical double layer Rct of the carbon steel substrate. Interestingly, the hybrid coatings filled with both PTFE and Cu2O exhibit excellent anti-corrosion and anti-wear performance. After being immersed in the SRB medium for 18 days, the icorr of the pure EP coating and hybrid coatings are 1.10 × 10−7 Amp/cm2 and 0.3 × 10−7 Amp/cm2, and the Rct values are 1.04 × 103 Ω·cm2 and 3.87 × 103 Ω·cm2, respectively. A solid tribofilm forms on the stainless steel counterface sliding against the hybrid coating, which is surmised to be essential for the low friction coefficients and wear. The present work paves a route for formulating the dual-function coatings of anti-biocorrosion and anti-wear.

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Section: Characterization Of Corrosion Morphologiessupporting

confidence: 80%

Section: Potentiodynamic Polarization Curvesmentioning

confidence: 99%

Dual-Function Hybrid Coatings Based on Polytetrafluoroethylene and Cu2O for Anti-Biocorrosion and Anti-Wear Applications

Li,

et al. 2024

Coatings

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Synergistic enhancement of polyvinylpyrrolidone‐modified TiO₂ and graphene oxide on the corrosion resistance of waterborne epoxy

Xu,

Yang,

Feng

2023

J of Applied Polymer Sci

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Waterborne epoxy (WEP) resins have garnered significant interest due to their potential application as anticorrosion coatings for steel materials. However, it has been reported that defects in the cured coatings generated during the curing process lead to the level of anticorrosion not meeting the expected effects. In this study, TiO2 and GO were selected to be modified by polyvinylpyrrolidone (PVP) to obtain PT and PG, and used to improve the anticorrosion performance of WEP. The obtained PT and PG were characterized using Fourier transform infrared, Raman, and x‐ray photoelectron spectroscopy. The morphology of PT and PG before and after modification was observed using scanning electron microscopy, and the differences were described. The analysis results of laser confocal scanning microscopy and water contact angle (WCA) indicate that there are differences in surface roughness and WCA of the WEP coatings with or without PT and PG. Electrochemical impedance spectroscopy was used to evaluate the anticorrosion performance of the coatings. The results showed that WEP coatings containing PT and PG exhibited better anticorrosion performance. The synergistic enhancement of PT and PG on the anticorrosion performance was proposed, which can be attributed to the comprehensive effect of the hydrophobicity of the coating surface and the barrier effect of PT and PG within the coatings.

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Developing rotary swaging process for improving the performance of wire-arc sprayed Al/Al2O3 composite coating

Zhao,

Lu,

et al. 2024

Surface and Coatings Technology

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Effect of cerium on the microstructure and anti-corrosion performance of Al-Zn coatings

Cited by 4 publications

References 33 publications

Dual-Function Hybrid Coatings Based on Polytetrafluoroethylene and Cu2O for Anti-Biocorrosion and Anti-Wear Applications

Dual-Function Hybrid Coatings Based on Polytetrafluoroethylene and Cu2O for Anti-Biocorrosion and Anti-Wear Applications

Synergistic enhancement of polyvinylpyrrolidone‐modified TiO₂ and graphene oxide on the corrosion resistance of waterborne epoxy

Developing rotary swaging process for improving the performance of wire-arc sprayed Al/Al2O3 composite coating

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Effect of cerium on the microstructure and anti-corrosion performance of Al-Zn coatings

Cited by 4 publications

References 33 publications

Dual-Function Hybrid Coatings Based on Polytetrafluoroethylene and Cu2O for Anti-Biocorrosion and Anti-Wear Applications

Dual-Function Hybrid Coatings Based on Polytetrafluoroethylene and Cu2O for Anti-Biocorrosion and Anti-Wear Applications

Synergistic enhancement of polyvinylpyrrolidone‐modified TiO2 and graphene oxide on the corrosion resistance of waterborne epoxy

Developing rotary swaging process for improving the performance of wire-arc sprayed Al/Al2O3 composite coating

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Synergistic enhancement of polyvinylpyrrolidone‐modified TiO₂ and graphene oxide on the corrosion resistance of waterborne epoxy