Enhanced Properties of Micro Arc Oxidation Coating with Cu Addition on TC4 Alloy in Marine Environment

Gao, Wei; Liu, Jiangnan; Jiang, Wei; Yao, Yuhong; Ma, Xinkai; Yang, Wei

doi:10.3390/coatings11101168

Cited by 4 publications

(7 citation statements)

References 31 publications

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“…As the concentration increased from 6 to 8 g/L, the roughness coating increased significantly, and its thickness maximized at 22.94 µm. The Cu 2+ concentration increase led directly to a solution conductivity increase, which led to similar increases in the thickness and roughness of the coating [20]. According to XPS results, Cu entered the MAO coating, which explains the thickening of the coating [21].…”

Section: Resultsmentioning

confidence: 84%

“…Sodium citrate was added to complex the Cu 2+ , and thus the complex ions were negatively charged. This enhanced the doping efficiency relative to the conventional neutral and positively charged Cu sources by facilitating electromigration to the anode under an electric field during micro-arc oxidation [20]. Under a constant voltage of 450 V, frequency 600 Hz, and a duty cycle of 3%, the MAO treatment lasted 15 min.…”

Section: Materials Preparationmentioning

confidence: 99%

“…For example, He et al [19] successfully prepared black MAO coatings on magnesium alloys by introducing copper into the electrolyte, and the increase in copper content eventually led to a decrease in the corrosion resistance of the coatings. Previously, we reported the effects of copper pyrophosphate on the structure and properties of TC4 micro-arc oxide coatings [20]. CuSO4 has been extensively used in industry as an insecticide and antibacterial agent.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Properties in Simulated Seawater of Copper-Doped Micro-arc Coatings on TC4 Alloy

Zhang

Yang

et al. 2022

Coatings

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Micro-arc oxidation (MAO) ceramic coatings were prepared on TC4 titanium alloys by adding CuSO4 to a (NaPO3)6 base solution. The microstructures of the MAO coatings were characterized by scanning electron microscopy (SEM), energy dispersive (EDS), and X-ray photoelectron spectroscopy (XPS). The corrosion resistance and wear resistance of these coatings were evaluated via hydrochloric acid immersion of weight deficit and friction tests. Those results indicated the presence of Cu in the MAO coating in the form of CuO and Cu2O. Incorporation of CuSO4 results in a thickness and roughness increase in the coating. The coating has a lower coefficient of friction (0.2) upon the addition of 4 g/L of CuSO4. The antibacterial properties of the MAO coatings were maximized at 6 g/L of CuSO4. However, the corrosion resistance of the copper-doped MAO coating did not exceed the undoped coating. This study shows that the addition of CuSO4 to the electrolyte successfully prepared copper-containing micro-arc oxidation coatings, which improved the wear resistance and antibacterial properties of the coating.

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Section: Resultsmentioning

confidence: 84%

Section: Materials Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure and Properties in Simulated Seawater of Copper-Doped Micro-arc Coatings on TC4 Alloy

Zhang

Yang

et al. 2022

Coatings

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“…Giving a porous structure to the surface of a material is one way to change the roughness. Micro arc oxidation (MAO) [80,81], dealloying [82,83], and 3D printing [84,85] are three main methods of preparing porous coatings. Zhao et al prepared [86] manganese-titanium dioxide (Mn-TiO 2 ) microporous coating by MAO on a titanium surface.…”

Section: Biological Properties 421 Promoting Bone Growthmentioning

confidence: 99%

Mechanical and Biological Properties of Titanium and Its Alloys for Oral Implant with Preparation Techniques: A Review

Wu,

Chen,

Kong

et al. 2023

Materials

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Dental implants have revolutionised restorative dentistry, offering patients a natural-looking and durable solution to replace missing or severely damaged teeth. Titanium and its alloys have emerged as the gold standard among the various materials available due to their exceptional properties. One of the critical advantages of titanium and its alloys is their remarkable biocompatibility which ensures minimal adverse reactions within the human body. Furthermore, they exhibit outstanding corrosion resistance ensuring the longevity of the implant. Their mechanical properties, including hardness, tensile strength, yield strength, and fatigue strength, align perfectly with the demanding requirements of dental implants, guaranteeing the restoration’s functionality and durability. This narrative review aims to provide a comprehensive understanding of the manufacturing techniques employed for titanium and its alloy dental implants while shedding light on their intrinsic properties. It also presents crucial proof-of-concept examples, offering tangible evidence of these materials’ effectiveness in clinical applications. However, despite their numerous advantages, certain limitations still exist necessitating ongoing research and development efforts. This review will briefly touch upon these restrictions and explore the evolving trends likely to shape the future of titanium and its alloy dental implants.

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“…Marine corrosion will cause a lot of environmental pollution and waste of resources, especially some heavy metals in marine metals, which are very destructive to the marine environment. Ti6Al4V alloy is extensively used in aerospace, automotive, marine, chemical and biomedical industries because of its low density, high strength, high corrosion resistance [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistance behavior of Ti/TiN multilayer coatings deposited on Ti6Al4V substrates

Tian

et al. 2022

J. Phys.: Conf. Ser.

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DC magnetron sputtering was used to deposit titanium (Ti), titanium nitride (TiN), and Ti/TiN multilayer coatings on Ti6Al4V alloy substrates. The multilayer coatings have 1, 4, 10, 16, 32 modulation periods respectively. SEM were used to analyze the surface and cross-sectional micro-features of the coatings. Electrochemical tests were carried out 3.5 wt% NaCl solution at room temperature. The resistance of the coating reaches the maximum value, which is 6 times that of the substrate, 2.4 times that of a single layer of titanium, and 5 times that of titanium nitride. With the increase of the modulation period, the charge transfer resistance of the Ti/TiN multilayer coatings increase firstly and then decreases, and charge transfer resistance reaches the maximum at the period of 4, which is closely related to the surface morphology.

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Enhanced Properties of Micro Arc Oxidation Coating with Cu Addition on TC4 Alloy in Marine Environment

Cited by 4 publications

References 31 publications

Microstructure and Properties in Simulated Seawater of Copper-Doped Micro-arc Coatings on TC4 Alloy

Microstructure and Properties in Simulated Seawater of Copper-Doped Micro-arc Coatings on TC4 Alloy

Mechanical and Biological Properties of Titanium and Its Alloys for Oral Implant with Preparation Techniques: A Review

Corrosion resistance behavior of Ti/TiN multilayer coatings deposited on Ti6Al4V substrates

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