Mechanical and wear behaviour of nanostructure TiO2–Ag coating on cobalt chromium alloys by air plasma spray and high velocity oxy-fuel

Hassim, Mohd Hazwan; Idris, Mohd Hasbullah; Yajid, Muhamad Azizi Mat; Samion, Syahrullail

doi:10.1016/j.jmrt.2019.04.003

Cited by 18 publications

(5 citation statements)

References 25 publications

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“…From the results, the hardness value of the nonporous coating (the NP coating) is the highest, the coating with 2% micro‐pores (the MP coating) is the lowest, and the MN coating is in the middle. This is because the high hardness nanomaterials increase the density of the coating and thus increase the hardness 23,24 . The roughness of the NP, MP, and MN coatings measured by white light measuring instrument is 1.30 μm, 1.46 μm, and 2.05 μm, respectively, as illustrated in Figure 6.…”

Section: Resultsmentioning

confidence: 96%

“…Comparing the Figures 4H and 12H, it can be seen that the distribution of Ti elements after wear is more uniform, which indicates that the nano‐TiO 2 particles fully participate in the wear process. Studies have suggested that nanoparticles can interfere with the movement of dislocations in composite coatings 24 . According to Zhu et al., 36 wear is influenced by the loss flux of coating material, and the worn particle detached between the sliding surfaces is favorable in wear system.…”

Section: Resultsmentioning

confidence: 99%

“…This is because the high hardness nanomaterials increase the density of the coating and thus increase the hardness. 23,24 The roughness of the NP, MP, and MN coatings measured by white light measuring instrument is 1.30 μm, 1.46 μm, and 2.05 μm, respectively, as illustrated in Figure 6. It can be seen that the roughness of the coating surface increased as the complexity of the surface structure increased.…”

Section: Microhardness and Roughnessmentioning

confidence: 99%

“…Studies have suggested that nanoparticles can interfere with the movement of dislocations in composite coatings. 24 According to Zhu et al, 36 wear is influenced by the loss flux of coating material, and the worn particle detached between the sliding surfaces is favorable in wear system. Nanomaterials have a large specific surface area and are easier to be adsorbed together with the material, so that there is more detached mate-rial on the friction surface.…”

Section: Wear Mechanismmentioning

confidence: 99%

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Surface modification of ceramic coating for enhanced hydrophobicity and wear properties

Wang

Liu

et al. 2022

Int J Applied Ceramic Tech

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In this paper, a micro-nano structural ceramic coating with good hydrophobicity and wear resistance was successfully prepared by sol-gel method, which is assisted by pore-forming agent and nanoparticles 1H, 1H, 2H, 2Hperfluorodecyltriethoxysilane modified. The surface morphology, hardness, roughness, wettability, and tribological properties of three different surface coatings were characterized. With the complication of the surface structure, the roughness of the coating increases from 1.30 to 2.05 μm. Under the combined effect of roughness and long hydrophobic chains, the contact angles of the coatings before and after modification under saline conditions increased from 56.31 to 140.59 • (pH4); from 55.58 to 134.40 • (pH7); from 53.80 to 132.26 • (pH10). Through the comparison of wear rate and wear morphology, it is found that the micro-nano structure coating has the lowest wear rate (0.705 × 10 -6 mm 3 ⋅N -1 ⋅s -1 ) and the smallest plastic deformation. This means that in addition to the good hydrophobicity and chemical stability, the micro-nano structure on the surface also improves the wear resistance of the coating.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Microhardness and Roughnessmentioning

confidence: 99%

Section: Wear Mechanismmentioning

confidence: 99%

See 2 more Smart Citations

Surface modification of ceramic coating for enhanced hydrophobicity and wear properties

Wang

Liu

et al. 2022

Int J Applied Ceramic Tech

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“…More-recent research describes the formation of a Ti nanolayer by thermal evaporation and posterior plasma nitriding processes, improving the tribological behavior of the uncoated alloy [73]. Also based on Ti, a nanostructure TiO 2 -Ag coating was proposed to obtain an antimicrobial, bioactive surface [55].…”

Section: Trends In Enhancing Coatings Performances On Cocr Alloys and Other Metallic Alloys (Including High-entropy Alloys)mentioning

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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(TiO2/Ag nanoparticles)@(chitosan-polyvinyl alcohol) core-shell nanofibers as novel anticorrosion and antibacterial improvers for epoxy coating systems

Pourhashem

et al. 2023

J Polym Res

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Mechanical and wear behaviour of nanostructure TiO2–Ag coating on cobalt chromium alloys by air plasma spray and high velocity oxy-fuel

Cited by 18 publications

References 25 publications

Surface modification of ceramic coating for enhanced hydrophobicity and wear properties

Surface modification of ceramic coating for enhanced hydrophobicity and wear properties

Sustainable Coatings on Metallic Alloys as a Nowadays Challenge

(TiO2/Ag nanoparticles)@(chitosan-polyvinyl alcohol) core-shell nanofibers as novel anticorrosion and antibacterial improvers for epoxy coating systems

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