Deposition of layered bioceramic hydroxyapatite/TiO2 coatings on titanium alloys using a hybrid technique of micro-arc oxidation and electrophoresis

Titanium and titanium alloys possess some attractive properties, such as excellent corrosion and erosion resistance, low densities, high specific strength and modulus, enabling them extensively used in aeronautical, marine, chemical and biomedical applications and so on. Nevertheless, Recent years, the corrosion resistance of titanium and titanium alloys is required to elevate in some fields, proper surface modification such as surface oxidation can solve the problems effectively. In this paper, the recent investigations of thermal oxidation and micro-arc oxidation to improve the corrosion resistant of titanium and its alloys are reviewed. The structures, properties and their influence factors of the coatings are analysed systematically. And the existing problems and the future prospect of the further researches is mentioned.

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Tribological functionalization of titanium alloys by Micro-Arc Oxidation for marine applications

MATEC Web of Conferences ◽

10.1051/matecconf/202032109001 ◽

2020 ◽

Vol 321 ◽

pp. 09001

Author(s):

Aude MATHIS ◽

Thierry MILLOT ◽

Vincent BRANGER ◽

Remy MULLER ◽

Jean-Yves GUENEHEUX

Keyword(s):

Friction Coefficient ◽

Titanium Alloys ◽

Pure Titanium ◽

Dynamic Contact ◽

Electrochemical Process ◽

Commercially Pure Titanium ◽

Tribological Behaviour ◽

Stick Slip ◽

Micro Arc Oxidation ◽

Slip Phenomenon

Micro-arc Oxidation (MAO) process is a plasma assisted electrochemical process, which allows formation of ceramic-like dry oxides on top of light alloys surfaces. The good corrosion resistance as well as the low density of titanium alloys are recognized and so required for conception of structural parts in marine environment. However, their tribological behaviour reveals an important tendency to stick-slip phenomenon, which makes use of these alloys for dynamic contact mechanisms difficult. Through the MAO project from IRT M2P, formation of a MAO coating composed of aluminium titanate has been investigated to improve tribological behaviour of a commercially pure titanium (Grade 2) and an α+β alloy (TA6V, Grade 5). Pin-on-disc testing has been carried out to evaluate friction coefficient and the presence or not of stick-slip phenomenon in various contact configurations (involving non-treated titanium surfaces, MAO treated surfaces, with steel or titanium balls …) in dry or artificial seawater media. Those test campaigns are completed by evaluation of fatigue behaviour, and tribological testing on a demonstrator. Finally, this study highlights influence of MAO coating on diminishing (to removed) stick-slip phenomenon, accompanied by a reduction of friction coefficient, whatever the kind of contact (single treated surface or both ones) and the medium.

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Electrochemical Properties of TiO2 Coatings Grown on Beta-Ti Substrates by Micro Arc Oxidation

ECS Meeting Abstracts ◽

10.1149/ma2010-01/13/792 ◽

2010 ◽

Keyword(s):

Electrochemical Properties ◽

Micro Arc Oxidation ◽

Tio2 Coatings

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Synthesis and antibacterial property of Ag-containing TiO2 coatings by combining magnetron sputtering with micro-arc oxidation

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2013.08.062 ◽

2013 ◽

Vol 235 ◽

pp. 748-754 ◽

Cited By ~ 28

Author(s):

Xiangyu Zhang ◽

Ruiqiang Hang ◽

Haibo Wu ◽

Xiaobo Huang ◽

Yong Ma ◽

...

Keyword(s):

Magnetron Sputtering ◽

Antibacterial Property ◽

Micro Arc Oxidation ◽

Tio2 Coatings

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A study of the physical, chemical and biological properties of TiO2 coatings produced by micro-arc oxidation in a Ca–P-based electrolyte

Journal of Materials Science Materials in Medicine ◽

10.1007/s10856-014-5207-3 ◽

2014 ◽

Vol 25 (7) ◽

pp. 1769-1780 ◽

Cited By ~ 15

Author(s):

Amanda dos Santos ◽

Joyce R. Araujo ◽

Sandra M. Landi ◽

Alexei Kuznetsov ◽

José M. Granjeiro ◽

...

Keyword(s):

Biological Properties ◽

Physical Chemical ◽

Micro Arc Oxidation ◽

Tio2 Coatings

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Effect of Lanthanum Nitrate on Titanium Alloys Ceramic Membrane Formed by Micro-Arc Oxidation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.300-301.1330 ◽

2013 ◽

Vol 300-301 ◽

pp. 1330-1333

Author(s):

Shi Jie Li ◽

Xiao Feng ◽

Lu Ming Wang

Keyword(s):

Biological Activity ◽

Phase Composition ◽

Titanium Alloys ◽

Ceramic Membrane ◽

Oxidation Process ◽

Ceramic Membranes ◽

Lanthanum Nitrate ◽

Micro Arc Oxidation ◽

Calcium And Phosphorus ◽

Microscopic Surface

Titanium alloys ceramic membranes were prepared via micro-arc oxidation process in original electrolyte and in the electrolyte adding lanthanum nitrate respectively.The microscopic surface morphology,energy spectrum and phase composition were analysed.The biological activity was evaluated by soaking in simulated body fluid.The results indicate that lanthanum nitrate could improve the surface topography,make more calcium and phosphorus enter into the film and promote the generation of hydroxyapatite.

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