Effect of post-sealing treatment with different concentrations of NaH2PO4 on corrosion resistance of MAO coating on 6063 aluminum alloy

Qin, Gemei; Zhang, Youcai; Yang, Erhui; Peng, Zhaowei; Wei, Wu; Xie, Xiaomeng; Li, Weizhou

doi:10.1016/j.surfcoat.2022.128604

Cited by 16 publications

(3 citation statements)

References 45 publications

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“…In addition, the AlPO 4 phase was successfully detected by a phase composition analysis. According to the composition of the electrolyte and the analysis of the previous two scholars, it is known that the P element in the MAO coating of 2024 aluminum alloy is mainly in the form of PO 4 3− and may form AlPO 4 27 …”

Section: Resultsmentioning

confidence: 99%

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Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Zhang

Ran

Chen

et al. 2022

Int J Applied Ceramic Tech

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Different ceramic coatings were prepared on the surface of 2024 aviation aluminum alloy using micro-arc oxidation process in silicate based electrolyte combined with the rare earth based compound Y(NO 3 ) 3 ⋅6H 2 O. The thickness, hardness of the coating and conductivity of electrolyte were tested using relative devices, morphology and chemical composition were studied by scanning electron microscope and energy dispersive spectroscope, respectively. The phase composition of the coatings was characterized by X-ray diffraction and X-ray photoelectron spectroscopy. Furthermore, the corrosion resistance of the coating was evaluated by an electrochemical workstation. The results showed that the addition of Y(NO 3 ) 3 ⋅6H 2 O could improve the thickness and hardness of the coating. The morphological observation of the coating showed that Y(NO 3 ) 3 ⋅6H 2 O was successfully incorporated into the ceramic layer and that the coating had the smallest porosity at 1.5 g/L Y(NO 3 ) 3 . The phase composition of the coating was mainly γ-Al 2 O 3 , α-Al 2 O 3 , SiO 2 , Y 2 O 3 , and AlPO 4 . The corrosion resistance of coating in simulated seawater with the addition of Y(NO 3 ) 3 ⋅6H 2 O was significantly improved, and the values of |Z| 0.01 Hz and corrosion rate of the coating reached the maximum and minimum at 1.5 g/L Y(NO 3 ) 3 , which were 5.63 × 10 5 Ω cm 2 and 7.444 × 10 −4 mm/a, respectively.

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Section: Resultsmentioning

confidence: 99%

“…3− and may form AlPO 4 . 27 The XPS pattern of element Y in the coating is shown in Figure 5C. Four peaks appeared after the XPS pattern splitfitting, corresponding to binding energies of 157.75, 158.56, 159.68, and 160.46 eV, respectively.…”

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 99%

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Zhang

Ran

Chen

et al. 2022

Int J Applied Ceramic Tech

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“…As a result, various surface modifications have been employed to protect magnesium alloys from corrosion. These include polymeric coatings [71], micro-arc oxidation (MAO) coatings [72], chemical conversion coatings [73], silane coatings [74], and composite coatings.…”

Section: Silane-based Composite Coatingsmentioning

confidence: 99%

Recent Trends and Progress in Corrosion Inhibitors and Electrochemical Evaluation

Bijapur,

Molahalli,

Shetty

et al. 2023

Applied Sciences

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Science and engineering research studies are currently concentrating on synthesizing, designing, producing, and consuming ecologically benign chemical species to replace harmful chemicals. This is due to the increasing demands of conservation knowledge and strict ecological regulations. Numerous environmentally friendly substitutes produced from natural resources, including biopolymers, plant extracts, chemical pharmaceuticals (drugs), and so on, are now frequently used as inhibitors to replace dangerous corrosion inhibitors. Many compounds have been extensively used. A range of methods, including physisorption, chemisorption, barrier protection, thin-film growth, and electrochemical procedures, will be used to provide corrosion resistance. The various kinds of corrosion inhibitors (CIs), the mechanisms underlying inhibition, and the evaluation procedures have all been covered in-depth. This review provides an overview of the relevant literature in which researchers and scientists used different types of CIs, the effect of CIs on metals, and information about designs and mechanisms used to minimize corrosion in a variety of equipment composed of alloys or metals, along with electrochemical evaluation studies. This review will provide scholars with fresh insights to advance the discipline.

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Effect of Epoxy Sealant Loaded with Modified Montmorillonite on the Corrosion Resistance of Fe-Based Amorphous Metallic Coating

Liu

Wang

et al. 2022

J. of Materi Eng and Perform

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Effect of post-sealing treatment with different concentrations of NaH2PO4 on corrosion resistance of MAO coating on 6063 aluminum alloy

Cited by 16 publications

References 45 publications

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Role of rare‐earth Y addition on formation and anticorrosion properties of MAO coating on 2024 aviation aluminum alloy

Recent Trends and Progress in Corrosion Inhibitors and Electrochemical Evaluation

Effect of Epoxy Sealant Loaded with Modified Montmorillonite on the Corrosion Resistance of Fe-Based Amorphous Metallic Coating

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