Superhydrophobic coatings for corrosion protection of magnesium alloys

Yao, Wenhui; Wu, Liang; Huang, Guangsheng; Jiang, Bin; Atrens, Andrej; Pan, Fusheng

doi:10.1016/j.jmst.2020.02.055

Cited by 174 publications

(50 citation statements)

References 170 publications

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“…However, the reported reviews focused mainly on the surface modification of Mg alloy in industrial (e.g. superhydrophobic coating [ 71 , 72 ]) and orthopedic applications [ 73 ], but scarcely on the coatings of Mg-based stents. Hence, it is necessary to review this momentous area of research.…”

Section: Introductionmentioning

confidence: 99%

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Zhang

Yang

et al. 2021

Bioactive Materials

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Magnesium (Mg) and its alloys, as potential biodegradable materials, have drawn wide attention in the cardiovascular stent field because of their appropriate mechanical properties and biocompatibility. Nevertheless, the occurrence of thrombosis, inflammation, and restenosis of implanted Mg alloy stents caused by their poor corrosion resistance and insufficient endothelialization restrains their anticipated clinical applications. Numerous surface treatment tactics have mainly striven to modify the Mg alloy for inhibiting its degradation rate and enduing it with biological functionality. This review focuses on highlighting and summarizing the latest research progress in functionalized coatings on Mg alloys for cardiovascular stents over the last decade, regarding preparation strategies for metal oxide, metal hydroxide, inorganic nonmetallic, polymer, and their composite coatings; and the performance of these strategies in regulating degradation behavior and biofunction. Potential research direction is also concisely discussed to help guide biological functionalized strategies and inspire further innovations. It is hoped that this review can give assistance to the surface modification of cardiovascular Mg-based stents and promote future advancements in this emerging research field.

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Section: Introductionmentioning

confidence: 99%

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Zhang

Yang

et al. 2021

Bioactive Materials

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“…Inspired by the “lotus effect”, the water‐repellent, and self‐cleaning properties of the SPH surface establish the protective coating that impairs the attack of aggressive ions from corrosive media, thus improving the protective effect on metal substrates 99 . Yao 100 and Liu 101 explained that SPH enforces a corrosion barrier by creating a protection layer of air pocket entrapped in microstructure functions to decrease the contact area and minimize the interaction between the substrate surface and corrosive solution, causing the difficulty of harmful ions such as chloride ions to pierce through the SPH coating owing to the obstructive effect of air pockets (Figure 6). Thus, SPH cover can shield Mg alloys from attacks by corrosive species, such as chloride ions, in the surrounding environment and greatly suppress the corrosion reaction.…”

Section: Modification Of Magnesium Anodementioning

confidence: 99%

Critical review on development of magnesium alloy as anode inMg‐Airfuel cell and additives in electrolyte

et al. 2021

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Summary This study aimed to provide a critical review of the magnesium‐air fuel cell (MAFC) system to provide readers with an overall comprehension of MAFC, which focuses on the modification of the magnesium anode and properties of saltwater as an electrolyte. Although MAFC is benign to the environment, it is well‐known for its challenging corrosion issue and by‐product deposition that affect its durability for commercialization and long‐term application. Since that MAFC is able to use seawater as electrolyte, it has great potential to be used as an alternative energy option for the marine sector. This journal will dissect the ability of MAFC to be used as a competitive alternative energy. Over the years, researchers have adopted several approaches, such as experimenting with different types of magnesium alloy and anode fabrication techniques, to tackle corrosion problems to alter the microstructure and mechanical properties of the anode in addition to applying a coating protection and using Mg‐based composite material. Furthermore, studies intriguingly and gradually focused on electrolyte formulation with different types of additives to address the debilitating precipitation issue and improve the discharge performance. Given the problems that arise in the system, currently, MAFC commercial products are only suitable as emergency back‐up power. In future work, an improved storage system for MAFC should be built to accommodate the precipitation products while maintaining the desired cell performance.

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“…In the surface science, the wetting phenomenon is an important subject as the wetting of a surface plays an important role in coating and informs us about the hydrophobic or hydrophilic character of the surface determined by the surface molecules. The principle of the contact angle measurement was already elaborated in the nineteenth century [ 63 , 64 ].…”

Section: Techniques Used To Characterize the Sam Layersmentioning

confidence: 99%

Formation of Self-Assembled Anticorrosion Films on Different Metals

Telegdi

2020

Materials

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The review will first discuss shortly the phenomenon of corrosion and enroll some general possibilities to decrease the rate of this deterioration. The stress will be laid upon the presentation of anticorrosive self-assembled molecular (SAM) layers as well as on the preparation technology that is a simple technique, does not need any special device, and can be applied on different solids (metals or non-metals) alone or in combination. The paper groups the chemicals (mainly amphiphiles) that can develop nanolayers on different pure or oxidized metal surfaces. The history of the self-assembled molecular layer will be discussed from the beginning of the first application up to now. Not only the conditions of the nanofilm preparation as well as their characterization will be discussed, but the methods that can evaluate the corrosion-inhibiting efficiency of the SAM layers under a corrosive environment will be demonstrated as well.

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Superhydrophobic coatings for corrosion protection of magnesium alloys

Cited by 174 publications

References 170 publications

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Critical review on development of magnesium alloy as anode inMg‐Airfuel cell and additives in electrolyte

Formation of Self-Assembled Anticorrosion Films on Different Metals

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