Enhancing corrosion and wear performance of PEO coatings on Mg alloys using graphene and graphene oxide additions: A review

Fattah‐alhosseini, Arash; Chaharmahali, Razieh

doi:10.1016/j.flatc.2021.100241

Cited by 77 publications

(18 citation statements)

References 149 publications

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“…As a result, the graphene-coated coatings are dense and have low porosity. Arash et al [30] showed that during plasma electrolytic oxidation (PEO) treatment, graphene is embedded in the inner layer to form a denser and thicker PEO coating, and when immersed in a corrosive medium, the graphene in the coating prevents the corrosive medium from penetrating the inner layer, thus improving the corrosion behavior of magnesium alloys.…”

Section: Anti-corrosion Mechanism Of Graphene Nanocompositesmentioning

confidence: 99%

Research Status of Graphene Polyurethane Composite Coating

Zhou

Huang

2022

Coatings

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Graphene material has a variety of excellent properties and applications in energy storage, biomaterials, photoelectric devices, and other fields. With the progress of nanotechnology, graphene nanomaterials have shown their advantages in the field of new nano-corrosion coatings with their high barrier structure. In addition, polyurethane is also widely used in the field of anti-corrosion coatings due to its excellent chemical resistance, mechanical properties, and weathering resistance. The preparation of composite coatings by combining graphene nanomaterials with traditional polyurethane (PU) coatings has opened up a new way for the research and development of new anticorrotic coatings. In this paper, graphene polyurethane composite coating was first used as the research object, and the mechanism of graphene material in the new composite coating was analyzed. Then, graphene oxide (GO), a commonly used precursor material, was used as an entry point for a detailed study of the properties of GO materials and the advantages and disadvantages of its application in composites, and two types of modifications, covalent and non-covalent, were analyzed. In addition, the preparation methods and processes of graphene polyurethane composite coatings were summarized. Finally, the future research directions and research focus of GO were prospected.

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Section: Anti-corrosion Mechanism Of Graphene Nanocompositesmentioning

confidence: 99%

Research Status of Graphene Polyurethane Composite Coating

Zhou

Huang

2022

Coatings

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“…It is clear that not all Mg alloys behave in the same way, and that choosing the alloying elements is the first step in developing a successful material. Different elements, and their influence on the microstructure and the corrosion resistance, were presented by Fattah-alhosseini and Chaharmahali in a review study [109].…”

Section: New Challenges In Coatings On Biodegradable Mg Alloysmentioning

confidence: 99%

“…Graphene and graphene oxide were also used with PEO to create a thicker coating layer that improves the corrosion resistance and the resistance to wear [109].…”

Section: New Challenges In Coatings On Biodegradable Mg Alloysmentioning

confidence: 99%

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

2021

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Starting with a description of the meaning of sustainable coating nowadays, this review presents a selection of methods for sustainable coatings manufacture using raw materials, saving energy and costs. This selection creates an introduction for the coatings performances of intensively investigated coated alloys and their multifunctionality. There are many examples and EU recommendations to be discussed, and we especially chose to introduce sustainable coatings with both industrial and medical functions, such as bioinspired films and coatings on high-entropy alloys, biodegradable metallic alloys, etc. A special focus is on nanotechnology and nanomaterials in green procedures, enhancing coatings’ multifunctionality, introducing green corrosion inhibitors, smart additives, and coatings based on superhydrophobicity. The conclusions and future perspectives of sustainable and multifunctional coatings, as expressions of sustainable advanced materials, are based on important motivations of such studies.

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“…Likewise, local alkalization around the surface of Mg-based implants, due to high hemolysis of red blood cells, [ 12 ] may be fatal for living organisms, as pH grows in relation to concentrated alkaline micro-environments [ 9 ]. Furthermore, the mechanical strength of the Mg alloy decreases with increasing [Mg 2+ ] as a result of the elevation in the osmotic pressure of the human bodily fluid, thus causing low cell viability [ 12 , 13 ] and structural imperfection of Mg alloys [ 14 ] which results in mechanical pre-failure of the implant [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Role of Solvent Used in Development of Graphene Oxide Coating on AZ31B Magnesium Alloy: Corrosion Behavior and Biocompatibility Analysis

et al. 2022

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Clinical applications of bio-absorbable magnesium (Mg) and its alloys can be enhanced by increasing their corrosion resistance, using surface modification and functionality. In this study, we synthesized graphene oxide (GO) through improved Hummers’ method and deposited it on biodegradable AZ31B Mg alloy for further characterization. Different suspensions of GO were prepared in various solvents, like deionized water, ethanol, and acetone by ultra-sonication. Electrophoretic deposition (EPD) was used to develop GO coatings on AZ31B Mg using different GO suspensions. Effect of various solvents on corrosion behavior, as well as in vitro biocompatibility, was studied. The optimized EPD parameters were 3 volts and 90 s for coating. Different characterization techniques were used to study GO and prepared coatings. Atomic force microscopy found that the average thickness of GO was ~1 nm. Electrochemical behavior of coatings was studied through electrochemical impedance spectroscopy (EIS) and Tafel analysis in Ringer’s lactate solution. Tafel analysis revealed that GO coatings deposited by GO water suspension increased corrosion protection efficiency of AZ31B Mg alloy by ~94%. After 72 h incubation in MC3T3-E1 osteoblast cells extract, in vitro analysis was performed to determine the cell viability and biocompatibility of the GO- coated and bare Mg samples. GO coatings deposited by GO water suspension demonstrated ~2× cell viability, as well as nontoxicity and better biocompatibility compared to the bare and other GO-coated Mg samples.

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Enhancing corrosion and wear performance of PEO coatings on Mg alloys using graphene and graphene oxide additions: A review

Cited by 77 publications

References 149 publications

Research Status of Graphene Polyurethane Composite Coating

Research Status of Graphene Polyurethane Composite Coating

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

Role of Solvent Used in Development of Graphene Oxide Coating on AZ31B Magnesium Alloy: Corrosion Behavior and Biocompatibility Analysis

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