A study on corrosion behavior of micro-arc oxidation coatings doped with 2-aminobenzimidazole loaded halloysite nanotubes on AZ31 magnesium alloys

Wu, Wan‐I; Wang, W.P.; Lin, Hou‐Yu

doi:10.1016/j.surfcoat.2021.127116

Cited by 34 publications

(8 citation statements)

References 40 publications

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“…As corrosion proceeds, corrosion products flake off and many corrosion pits exist. In the case of MAO coating, it dissolves when contacting with NaCl solution and corrosion ions penetrate the coating through micropores and microcracks, where damage occurs first 35 . Once the corrosion initiates, the generated hydrogen and corrosion products further expand the cracks, thus resulting in the failure of the coating.…”

Section: Resultsmentioning

confidence: 99%

“…In the case of MAO coating, it dissolves when contacting with NaCl solution and corrosion ions penetrate the coating through micropores and microcracks, where damage occurs first. 35 Once the corrosion initiates, the generated hydrogen and corrosion products further expand the cracks, thus resulting in the failure of the coating. Consequently, after 72 h immersion, the surface undergoes obvious changes, as shown in Figure 9E.…”

Section: Chemical Constitution Of the Coatingsmentioning

confidence: 99%

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Fabrication and corrosion resistance of a superhydrophobic coating on Mg‐Li alloys via MAO and HDTMS modification

Wang

et al. 2023

Int J Applied Ceramic Tech

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A simple and environment‐friendly method was designed to prepare superhydrophobic (SHP) surface on Mg‐Li alloy by the combination of microarc oxidation and a subsequent hexadecyltrimethoxysilane modification. In the coating, a low‐energy surface with rough structure was successfully synthesized, resulting in a high contact angle of 163.1° and a superior corrosion resistance. The high corrosion resistance can be attributed to the synergistic effect of superhydrophobicity and physical barrier ability of SHP coating. Furthermore, the SHP coating exhibits excellent self‐cleaning property and chemical stability.

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Section: Resultsmentioning

confidence: 99%

Section: Chemical Constitution Of the Coatingsmentioning

confidence: 99%

Fabrication and corrosion resistance of a superhydrophobic coating on Mg‐Li alloys via MAO and HDTMS modification

Wang

et al. 2023

Int J Applied Ceramic Tech

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“…Inhibitors can also be loaded into nanocontainers, such as halloysite nanotubes [ 60 , 266 , 267 , 268 ] and LDH, and subsequently applied onto PEO coating via immersion post-treatment. Such an approach yields more control on the release of inhibitors, which is triggered by the effect of corrosion reaction byproducts (e.g., increase in OH − or Mg 2+ ) or corrosive ions (e.g., Cl − or SO 4 2− ).…”

Section: Combining Inhibitors With Other Corrosion Protection Strategiesmentioning

confidence: 99%

Chromate-Free Corrosion Protection Strategies for Magnesium Alloys—A Review: Part III—Corrosion Inhibitors and Combining Them with Other Protection Strategies

et al. 2022

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Owing to the unique active corrosion protection characteristic of hexavalent chromium-based systems, they have been projected to be highly effective solutions against the corrosion of many engineering metals. However, hexavalent chromium, rendered a highly toxic and carcinogenic substance, is being phased out of industrial applications. Thus, over the past few years, extensive and concerted efforts have been made to develop environmentally friendly alternative technologies with comparable or better corrosion protection performance to that of hexavalent chromium-based technologies. The introduction of corrosion inhibitors to a coating system on magnesium surface is a cost-effective approach not only for improving the overall corrosion protection performance, but also for imparting active inhibition during the service life of the magnesium part. Therefore, in an attempt to resemble the unique active corrosion protection characteristic of the hexavalent chromium-based systems, the incorporation of inhibitors to barrier coatings on magnesium alloys has been extensively investigated. In Part III of the Review, several types of corrosion inhibitors for magnesium and its alloys are reviewed. A discussion of the state-of-the-art inhibitor systems, such as iron-binding inhibitors and inhibitor mixtures, is presented, and perspective directions of research are outlined, including in silico or computational screening of corrosion inhibitors. Finally, the combination of corrosion inhibitors with other corrosion protection strategies is reviewed. Several reported highly protective coatings with active inhibition capabilities stemming from the on-demand activation of incorporated inhibitors can be considered a promising replacement for hexavalent chromium-based technologies, as long as their deployment is adequately addressed.

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“…Accordingly, considerable efforts have been devoted to developing effective methods to elongate the applied lifetime of Mg alloys [4][5][6][7]. Among various developed strategies, adding inhibitors to the corrosive environment is a simple, easy and low-cost method, which has attracted much attention [8][9][10][11][12][13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

A synergistic anti-corrosion effect of longan residue extract and sodium dodecylbenzenesulfonate composition on AZ91D magnesium alloy in NaCl solution

Qian¹,

Guo

et al. 2022

Corrosion Engineering, Science and Technology

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Addition of inhibitor is an efficient and feasible method to delay the corrosion of magnesium alloys. Longan residue extract (LRE) is a promising inhibitor with the sustainable and abundant advantages. However, the inhibition efficiency of LRE is only 80.01% in NaCl solution, which would not supply the efficient protection for the Mg alloys. The other inhibitor, sodium dodecylbenzenesulfonate (SDBS), is employed to refine the anti-corrosion performance. The anti-corrosion performance of hybrid inhibitor is investigated by electrochemical measurements, scanning electron microscopy (SEM), Xray diffractometer (XRD), and atomic force microscopy (AFM). The inhibition efficiency can be remarkably increased to 92.15% due to the synergistic effects of LRE and SDBS. The anti-corrosion performance would be further increased to 95.67% if the Mg alloys are soaked in the solution including the hybrid inhibitors for 12 h. The present studies explore a new and efficient inhibitor for Mg alloys and afford a feasible strategy to utilise the agriculture waste.

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A study on corrosion behavior of micro-arc oxidation coatings doped with 2-aminobenzimidazole loaded halloysite nanotubes on AZ31 magnesium alloys

Cited by 34 publications

References 40 publications

Fabrication and corrosion resistance of a superhydrophobic coating on Mg‐Li alloys via MAO and HDTMS modification

Fabrication and corrosion resistance of a superhydrophobic coating on Mg‐Li alloys via MAO and HDTMS modification

Chromate-Free Corrosion Protection Strategies for Magnesium Alloys—A Review: Part III—Corrosion Inhibitors and Combining Them with Other Protection Strategies

A synergistic anti-corrosion effect of longan residue extract and sodium dodecylbenzenesulfonate composition on AZ91D magnesium alloy in NaCl solution

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