The effect of in-situ reactive incorporation of MoOx on the corrosion behavior of Ti-6Al-4 V alloy coated via micro-arc oxidation coating

Kaseem, Mosab; Choe, Han-Choel

doi:10.1016/j.corsci.2021.109764

Cited by 48 publications

(14 citation statements)

References 63 publications

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“…Numerous fine discharges with moderate intensity were observed in all samples after ∼10 s, indicating that the start of the dielectric breakdown in all samples was identical. 13 This behavior would be correlated to the same voltage of 380 V that was applied for 300 s in all samples. The plasma discharges that cover the whole surface in the case of 1CMC and 2CMC were somehow weaker than that in the 0CMC sample, which suggested that 1 and 2 g/L CMC led to minimizing the intensity of the intense plasma discharges.…”

Section: Resultsmentioning

confidence: 89%

“…The addition of CMC into the electrolyte reduced the values of current density, where the lowest values were found in the case of the 2CMC sample. Furthermore, it can be demonstrated that all samples experienced variations in current density over time, corresponding to sporadic powerful plasma discharges scanning the sample’s surface. ,− However, with the addition of CMC to the electrolyte, such fractionations tended to be minimized, resulting in a more uniform and less fluctuating curve in the case of the 2CMC sample. Because the 2CMC sample had the lowest current density values and the least fluctuating curve, low-energy plasma discharges (soft discharges) would form on the 2CMC sample.…”

Section: Resultsmentioning

confidence: 99%

“…The ti2p spectrum in Figure 8c was fitted into three peaks at 458.24, 460.82, and 464.00 eV associated with metallic Ti and Ti 4+ in anatase and rutile. 13,48 The fitting of the O1s spectrum in Figure 8d yielded three peaks. The one at 530.1 would be related to TiO 2 or to the oxygen atom bonded with Ca atoms, while the peaks at 531 and 532.2 eV would be assigned to the oxygen that exists in MCPM or Ti−OH and P−OH.…”

Section: Effect Of Cmc On the Morphology Andmentioning

confidence: 99%

“…The PE process would be affected by the chemistry of electrolytes and processing parameters. The electrolyte type formulated by several inorganic and/or organic additives has a crucial impact on the surface properties of the oxide layers produced via PE. − The electrolyte additives would change the intensities of plasma discharges and surface properties of the oxide layers obtained by PE.…”

Section: Introductionmentioning

confidence: 99%

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Synchronized Improvements in the Protective and Bioactive Properties of Plasma-Electrolyzed Layers via Cellulose Microcrystalline

Kaseem

Choe

2022

ACS Biomater. Sci. Eng.

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This study reports synchronized improvements in the protective and bioactive properties of Ti-6Al-4V alloy through the formation of titania-based inorganic layers by considering the role of cellulose microcrystalline (CMC) additive into account. Acetatephosphate-based electrolyte with cellulose CMC is formulated for the first time to modify the porous structure of the oxide layers made via plasma electrolysis of Ti-6Al-4V alloy. The presence of CMC (0, 1, 2, 3 g/L) changed the characteristics of plasma discharges where porous oxide layers with different pore sizes and surface roughness were obtained. A rough oxide layer with large pores was found in the 3 g/L CMC, while a slightly smoother oxide layer with smaller pores was obtained in the case of 2 g/L CMC. The −OH groups in CMC would facilitate the formation of an adsorption layer on the substrate surface, affecting the sparking behavior during plasma electrolysis (PE). Due to a synergy between controlled microstructure, surface roughness, and the insertion of bioactive phases, the coated samples in CMC-containing electrolytes displayed protective and bioactive properties simultaneously. Based on the obtained results, the samples coated in CMC-containing electrolytes can be used as safe implants to replace missing teeth in dental applications.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Cmc On the Morphology Andmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synchronized Improvements in the Protective and Bioactive Properties of Plasma-Electrolyzed Layers via Cellulose Microcrystalline

Kaseem

Choe

2022

ACS Biomater. Sci. Eng.

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“…However, there are a few studies on other metals such as Ti and Cu. Ti and its alloys are highly corrosion resistant in the marine environment, where most traditional materials frequently collapse, although its oxide layer is no longer resistant if treated with highly concentrated hydrochloric acid or chloride ions. ,, There are very few studies on the biocorrosion of Ti in marine conditions. Saleem et al explored the corrosion of Ti by P. aeruginosa in simulated marine conditions.…”

Section: Role Of Mediators In Electron Transfermentioning

confidence: 99%

Extracellular Electron Transfer by Pseudomonas aeruginosa in Biocorrosion: A Review

Chugh

Sheetal

Singh

et al. 2022

ACS Biomater. Sci. Eng.

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Microorganisms with extracellular electron transfer (EET) capability have gained significant attention for their different biotechnological applications, like biosensors, bioremediation, and microbial fuel cells. Current research affirmed that microbial EET potentially promotes corrosion of iron structures, termed microbiologically influenced corrosion (MIC). The sulfate-reducing (SRB) and nitrate-reducing (NRB) bacteria are the most investigated among the different MIC-promoting bacteria. Unlike extensively studied SRB corrosion, NRB corrosion has received less attention from researchers. Hence, this review focuses on EET by Pseudomonas aeruginosa, a pervasive bacterium competent for developing biofilms in marine habitats and oil pipelines. A comprehensive discussion on the fundamentals of EET mechanisms in MIC is provided first. After that, the review offers state-of-the-art insights into the latest research on the EET-assisted MIC by Pseudomonas aeruginosa. The role of electron transfer mediators has also been discussed to understand the mechanisms involved in a better way. This review will be beneficial to open up new opportunities for developing strategies for combating biocorrosion.

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In-situ synthesis and characterization of CeO2–TiO2 composite coatings on titanium substrate by micro-arc oxidation

Sun

et al. 2022

J Mater Sci: Mater Electron

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The effect of in-situ reactive incorporation of MoOx on the corrosion behavior of Ti-6Al-4 V alloy coated via micro-arc oxidation coating

Cited by 48 publications

References 63 publications

Synchronized Improvements in the Protective and Bioactive Properties of Plasma-Electrolyzed Layers via Cellulose Microcrystalline

Synchronized Improvements in the Protective and Bioactive Properties of Plasma-Electrolyzed Layers via Cellulose Microcrystalline

Extracellular Electron Transfer by Pseudomonas aeruginosa in Biocorrosion: A Review

In-situ synthesis and characterization of CeO2–TiO2 composite coatings on titanium substrate by micro-arc oxidation

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