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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Yerokhin, Aleksey
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (53/53 displayed)
- 2024Pore formation and pore inter-connectivity in plasma electrolytic oxidation coatings on aluminium alloycitations
- 2023Phase transitions in alumina films during post-sparking anodising of Al alloyscitations
- 2023Fabrication, interfacial and flexural properties of a polymer composite reinforced by γ-Al2O3/Al fibrescitations
- 2022Phase transitions in alumina films during post-sparking anodising of Al alloyscitations
- 2022Multi-functional Ceramic Coatings for Corrosion Protection of Magnesium Alloys
- 2022Multi-functional Ceramic Coatings for Corrosion Protection of Magnesium Alloys
- 2022Materials Aspects in Frettingcitations
- 2021Toward rational design of ceramic coatings generated on valve metals by plasma electrolytic oxidation: the role of cathodic polarisation
- 2021Plasma electrolytic oxidation of magnesium by sawtooth pulse currentcitations
- 2021Adhesive bond strength of PEO coated AA6060-T6citations
- 2021Adhesive bond strength of PEO coated AA6060-T6citations
- 2020Plasma additive layer manufacture smoothing (PALMS) technology – An industrial prototype machine development and a comparative study on both additive manufactured and conventional machined AISI 316 stainless steelcitations
- 2020PEO-Chameleon as a potential protective coating on cast aluminum alloys for high-temperature applicationscitations
- 2020Influence of ultra-fine grain structure on corrosion behaviour of biodegradable Mg-1Ca alloycitations
- 2020Surface characteristics underpinning fretting wear performance of heavily loaded duplex chameleon/PEO coatings on Al
- 2020AC plasma electrolytic oxidation of additively manufactured and cast AlSi12 alloyscitations
- 2019Charge transfer mechanisms underlying Contact Glow Discharge Electrolysiscitations
- 2019Wear Resistant Coatings with a High Friction Coefficient Produced by Plasma Electrolytic Oxidation of Al Alloys in Electrolytes with Basalt Mineral Powder Additionscitations
- 2019Finite element modeling of Al6082 Plasma Electrolytic Oxidation coatings
- 2019Incorporation of halloysite nanotubes into forsterite surface layer during plasma electrolytic oxidation of AM50 Mg alloycitations
- 2018Fretting wear behavior of duplex PEO/chameleon coating on Al alloycitations
- 2018Cyclic Voltammetry Study of PEO Processing of Porous Ti and Resulting Coatingscitations
- 2018Anodic film growth and silver enrichment during anodizing of an Mg-0.6 at.% Ag alloy in fluoride-containing organic electrolytescitations
- 2018The role of cathodic current in plasma electrolytic oxidation of aluminium: current density ‘scanning waves’ on complex-shape substratescitations
- 2017Influence of sealing post-treatments on the corrosion resistance of PEO coated AZ91 magnesium alloycitations
- 2017Remarkable improvement in corrosion properties of Al substrates by means of alumina-zirconia nanostructured coating through PEO method
- 2017Alumina- zirconia coatings produced by Plasma Electrolytic Oxidation on Al alloy for corrosion resistance improvementcitations
- 2016In situ impedance spectroscopy of the plasma electrolytic oxidation process for deposition of Ca- and P-containing coatings on Ticitations
- 2016Electric Field Effect on Surface Layer Removal during Electrolytic Plasma Polishingcitations
- 2016Characteristics and in vitro response of thin hydroxyapatite-titania films produced by plasma electrolytic oxidation of Ti alloys in electrolytes with particle additionscitations
- 2015Mechanical behaviour of cp-magnesium with duplex hydroxyapatite and PEO coatingscitations
- 2014Composite hydroxyapatite-PTFE coatings on Mg-Mn-Ce alloy for resorbable implant applications via a plasma electrolytic oxidation-based routecitations
- 2014Effect of current mode on PEO treatment of magnesium in Ca- and P-containing electrolyte and resulting coatingscitations
- 2013Evaluation of residual stress development at the interface of plasma electrolytically oxidized and cold-worked aluminumcitations
- 2013DC plasma electrolytic oxidation of biodegradable cp-Mgcitations
- 2013In vitro biological response of plasma electrolytically oxidized and plasma-sprayed hydroxyapatite coatings on Ti-6Al-4V alloycitations
- 2013Corrosion behaviour and galvanic coupling with steel of Al-based coating alternatives to electroplated cadmiumcitations
- 2010Substitution of hexavalent chromate conversion treatment with a plasma electrolytic oxidation process to improve the corrosion properties of ion vapour deposited AlMg coatingscitations
- 2010Pulse current plasma assisted electrolytic cleaning of AISI 4340 steelcitations
- 2010Spectroscopic study of electrolytic plasma and discharging behaviour during the plasma electrolytic oxidation (PEO) processcitations
- 2010PEO coatings obtained on an Mg-Mn type alloy under unipolar and bipolar modes in silicate-containing electrolytescitations
- 2008Structural characteristics and residual stresses in oxide films produced on Ti by pulsed unipolar plasma electrolytic oxidationcitations
- 2007The effect of combined shot-peening and PEO treatment on the corrosion performance of 2024 Al alloycitations
- 2006Effect of combined shot-peening and PEO treatment on fatigue life of 2024 Al alloycitations
- 2005Oxide ceramic coatings on aluminium alloys produced by a pulsed bipolar plasma electrolytic oxidation processcitations
- 2005Hard tribological Ti-B-N, Ti-Cr-B-N, Ti-Si-B-N and Ti-Al-Si-B-N coatingscitations
- 2004Fatigue properties of Keronite® coatings on a magnesium alloycitations
- 2002Tribological evaluation of AISI 304 stainless steel duplex treated by plasma electrolytic nitrocarburising and diamond-like carbon coatingcitations
- 2002Kinetic aspects of aluminium titanate layer formation on titanium alloys by plasma electrolytic oxidationcitations
- 2002Abrasive wear/corrosion properties and TEM analysis of Al2O3 coatings fabricated using plasma electrolysiscitations
- 2001Duplex surface treatments combining plasma electrolytic nitrocarburising and plasma-immersion ion-assisted depositioncitations
- 2001Characteristics of a plasma electrolytic nitrocarburising treatment for stainless steelscitations
- 2000Characterisation of oxide films produced by plasma electrolytic oxidation of a Ti-6Al-4V alloycitations
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article
Characterisation of oxide films produced by plasma electrolytic oxidation of a Ti-6Al-4V alloy
Abstract
The paper discusses processing and property aspects of oxide films formed on a Ti-6Al-4V alloy by AC plasma electrolytic oxidation (PEO) in aqueous solutions containing aluminate, phosphate, silicate and sulfate anions and some of their combinations. Structure, composition, mechanical tribological and corrosion resistant characteristics of the films formed are studied by SEM, XRD and microhardness analyses, and by scratch, impact, pin-on-disc friction and potentiodynamic corrosion testing. It is found that the films produced from the aluminate-phosphate electrolyte are dense and uniform and are composed mainly of Al 2 TiO 5 and TiO 2 phases of the rutile form. The films possess a beneficial combination of 50-60 μm thickness, 575 kg/mm 2 hardness and high adhesion and provide a low wear rate (3.4 X 10 -8 mm 3 /Nm) but a relatively high friction coefficient of μ = 0.6-0.7 against steel, caused by material transfer from the counterface. A minimum friction coefficient of μ = 0.18 is recorded during the testing of softer rutile-anatase films, 7 μm thick, produced from a phosphate electrolyte. Both of these types of film show good corrosion resistance in NaCl and physiological solutions, where the corrosion current is approximately 1.5 orders of magnitude lower than that of the uncoated substrate. SiO 2 /TiO 2 -based films with 70-90 μm thickness and high bulk porosity produced from silicate and silicate-aluminate electrolytes demonstrate better corrosion behaviour in H 2 SO 4 solution, due to the greater chemical stability of the film phase components in this environment. (C) 2000 Elsevier Science S.A. All rights reserved.