The effect of zinc oxide coating morphology on corrosion performance of Ti-6Al-4 V alloys

Saidi, R.; Raeissi, K.; Ashrafizadeh, F.; Kharaziha, Mahshid

doi:10.1016/j.jallcom.2021.160771

Cited by 23 publications

(13 citation statements)

References 44 publications

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“…Surface morphology and chemical composition are two important parameters that determine wettability. 16 The porosity of the coating affects the surface morphology and thus the wettability of the coating. Among them, the contact angles of the 15MN and 20MN coatings at different pH values are both greater than 150…”

Section: Coating Wettabilitymentioning

confidence: 99%

“…The circuit models refer to some literatures about hydrophobic coating. 16,30,31 The equivalent circuit model for bare steel is R s (C dl R ct ), where R s is the solution resistance, C dl is the double layer capacitance, and R ct is the charge transfer resistance. The equivalent circuit model of the porous hydrophobic ceramic coating in acidic brine is…”

Section: Electrochemical Behaviormentioning

confidence: 99%

“…The common methods for establishing ceramic coatings with rough structure include electrochemical deposition, micro-arc oxidation, dipping method, and pore-forming method. [16][17][18][19][20][21] Among them, the pore-making method is simple, and the ceramic coating itself has the characteristics of porosity. 16 Especially for phosphate-cured ceramic coatings, curing and pore making can be performed simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…[16][17][18][19][20][21] Among them, the pore-making method is simple, and the ceramic coating itself has the characteristics of porosity. 16 Especially for phosphate-cured ceramic coatings, curing and pore making can be performed simultaneously. For porous coatings, it is generally believed that as the porosity increases, the ability of the coating to resist corrosion decreases.…”

Section: Introductionmentioning

confidence: 99%

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Effect of pore content and pH on the corrosion behavior of hydrophobic ceramic coatings

Wang

et al. 2022

Int J Applied Ceramic Tech

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In this paper, superhydrophobic ceramic coatings were successfully prepared on stainless steel substrates (S304) by sol-gel method, and the effects of pore content and pH conditions on the corrosion resistance of hydrophobic ceramic coatings were studied. As the porosity increases, the contact angle of the coating increases. Among them, the contact angles of the coatings with 15% and 20% porosity in different pH solutions are all greater than 150 • , achieving superhydrophobic surfaces. The contact angle results before and after corrosion show that the solution with a higher pH has a greater damage to the hydrophobicity of the coating. The corrosion resistance of the coatings was evaluated comparatively from polarization curves and electrochemical impedance spectroscopy. As the hydrophobicity improves, the corrosion resistance of the hydrophobic ceramic coating is enhanced. The impedance moduli at .01 Hz of the coating are 1.04 × 10 3 times (pH 4), .13 × 10 3 times (pH 7), and .74 × 10 3 times (pH 10) of the bare steel, respectively. With the increase of pH, the corrosion resistance of hydrophobic ceramic coatings decreases, because OH − in the corrosion solution is more easily adsorbed on the surface of the coating, thereby destroying the long hydrophobic chains.

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Section: Coating Wettabilitymentioning

confidence: 99%

Section: Electrochemical Behaviormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of pore content and pH on the corrosion behavior of hydrophobic ceramic coatings

Wang

et al. 2022

Int J Applied Ceramic Tech

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“…Although it has been confirmed that nano-ZnO coatings could alter the corrosion performance of the original Ti substrate, differences in surface morphology with a specific chemical composition may still result in variable biological properties. Recently, it was reported that the nano-ZnO coating with spherical morphology provided high initial corrosion performance, while the irregular nanosheet with porous networks and flower-like morphology impaired the corrosion performance of the Ti6Al4V substrate [ 92 ].…”

Section: Anti-corrosion Property Of Nano-zno Modified Ti Implantsmentioning

confidence: 99%

NanoZnO-modified titanium implants for enhanced anti-bacterial activity, osteogenesis and corrosion resistance

Wang

et al. 2021

J Nanobiotechnol

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Titanium (Ti) implants are widely used in dentistry and orthopedics owing to their excellent corrosion resistance, biocompatibility, and mechanical properties, which have gained increasing attention from the viewpoints of fundamental research and practical applications. Also, numerous studies have been carried out to fine-tune the micro/nanostructures of Ti and/or incorporate chemical elements to improve overall implant performance. Zinc oxide nanoparticles (nano-ZnO) are well-known for their good antibacterial properties and low cytotoxicity along with their ability to synergize with a variety of substances, which have received increasingly widespread attention as biomodification materials for implants. In this review, we summarize recent research progress on nano-ZnO modified Ti-implants. Their preparation methods of nano-ZnO modified Ti-implants are introduced, followed by a further presentation of the antibacterial, osteogenic, and anti-corrosion properties of these implants. Finally, challenges and future opportunities for nano-ZnO modified Ti-implants are proposed. Graphical Abstract

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Characterization of Electrochemical and Biocompatibility of Zinc Oxide Coating Electrodeposited on Commercial Pure Titanium Alloy

Torabianfard,

Jamaati,

Jamshidi Aval

2024

Adv Eng Mater

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This study examines how the duration of electrodeposition affects the morphology and electrochemical characteristics of zinc oxide coatings applied to a pure titanium substrate. The morphology of the coating and the phases present within it were analyzed using a scanning electron microscope and the X‐ray diffraction technique. The coating’s resistance to corrosion in a phosphate‐buffered saline solution was evaluated using two electrochemical methods: impedance spectroscopy and potentiodynamic polarization tests. The surface roughness of the coated samples was assessed using interferometry. The results demonstrate that an increase in electrodeposition time, ranging from 150 to 1200 seconds, leads to an enhanced texture intensity in the (0002) and (010) planes of the ZnO coating. Furthermore, the thickness of the ZnO crystals and surface roughness increases by factors of 3.25 and 2.79, respectively, as the deposition time is extended. This extended duration results in the formation of larger needle‐shaped and flower‐like ZnO crystals, leading to a significantly non‐uniform structure. Correspondingly, the corrosion rate also increases as the electrodeposition time is extended from 150 to 1200 seconds, rising from 0.001951 to 9.117 µm/year. The lowest corrosion rate (1.654 µm/year) is achieved in coatings deposited for 300 seconds using a potential of 3 V.This article is protected by copyright. All rights reserved.

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The effect of zinc oxide coating morphology on corrosion performance of Ti-6Al-4 V alloys

Cited by 23 publications

References 44 publications

Effect of pore content and pH on the corrosion behavior of hydrophobic ceramic coatings

Effect of pore content and pH on the corrosion behavior of hydrophobic ceramic coatings

NanoZnO-modified titanium implants for enhanced anti-bacterial activity, osteogenesis and corrosion resistance

Characterization of Electrochemical and Biocompatibility of Zinc Oxide Coating Electrodeposited on Commercial Pure Titanium Alloy

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