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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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Din, Rameez Ud
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2019Characterization of blisters on powder coated aluminium AA5006 architectural profilescitations
- 2018An electroplated copper–silver alloy as antibacterial coating on stainless steelcitations
- 2018Transformation of iron containing constituent intermetallic particles during hydrothermal treatment
- 2017Interfacial Interaction of Oxidatively Cured Hydrogen Silsesquioxane Spin-On-Glass Enamel with Stainless Steel Substratecitations
- 2017Steam based conversion coating on AA6060 alloy: Effect of sodium silicate chemistry and corrosion performancecitations
- 2017Corrosion Resistance of AISI 316L Coated with an Air-Cured Hydrogen Silsesquioxane Based Spin-On-Glass Enamel in Chloride Environmentcitations
- 2017Influence of steam-based pre-treatment using acidic chemistries on the adhesion performance of powder coated aluminium alloy AA6060citations
- 2016Hydrogen Silsesquioxane based silica glass coatings for the corrosion protection of austenitic stainless steelcitations
- 2016Microstructure and corrosion performance of steam-based conversion coatings produced in the presence of TiO2 particles on aluminium alloyscitations
- 2016Microstructure and corrosion performance of steam-based conversion coatings produced in the presence of TiO 2 particles on aluminium alloyscitations
- 2015Performance Comparison of Steam-Based and Chromate Conversion Coatings on Aluminum Alloy 6060citations
- 2015Corrosion issues of powder coated AA6060 aluminium profilescitations
- 2015Accelerated growth of oxide film on aluminium alloys under steam: Part II: Effects of alloy chemistry and steam vapour pressure on corrosion and adhesion performancecitations
- 2015Steam assisted oxide growth on aluminium alloys using oxidative chemistries: Part II corrosion performancecitations
- 2015Accelerated growth of oxide film on aluminium alloys under steam: Part I: Effects of alloy chemistry and steam vapour pressure on microstructurecitations
- 2015Aluminium Alloy AA6060 surface treatment with high temperature steam containing chemical additivescitations
- 2015Role of acidic chemistries in steam treatment of aluminium alloyscitations
- 2015Steam assisted oxide growth on aluminium alloys using oxidative chemistries: Part I Microstructural investigationcitations
- 2015Accelerated growth of oxide film on aluminium alloys under steam:Part I: Effects of alloy chemistry and steam vapour pressure on microstructurecitations
- 2015Steam assisted oxide growth on aluminium alloys using oxidative chemistries:Part i Microstructural investigationcitations
- 2014Steam generated conversion coating on aluminium alloys
- 2014Characterization of steam generated anti-corrosive oxide films on Aluminium alloys
- 2014Anti-corrosive Conversion Coating on Aluminium Alloys Using High Temperature Steam
- 2013Steam Assisted Accelerated Growth of Oxide Layer on Aluminium Alloys
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conferencepaper
Anti-corrosive Conversion Coating on Aluminium Alloys Using High Temperature Steam
Abstract
Aluminium is extensively used as a structural material due to its excellent strength to weight ratio and corrosion resistance properties. The surface of aluminium under normal conditions has a thin oxide film (1-10nm) which provides corrosion resistance. However due to lower thickness, flaws and heterogeneity of native oxide layer does not provide long time corrosion resistance and adhesion of organic coating for a particular function in different environments. In order to enhance the corrosion resistance and adhesion of organic coating, the aluminium native oxide layer is treated to transform or convert to a functional conversion coating. In the last several decades chromate conversion coating (CrCCs) have been the most common conversion coatings used for aluminium alloys. Due to the toxicity of the hexavalent chrome, however, environmental friendly alternatives to CrCCs have been investigated extensively. Despite the intense research no equivalent substitute for (CrCCs) has been found. For these reasons, alternative conversion coatings are sought for substituting existing ones.<br/><br/>Aluminium alloys AA 1090, Peraluman 706, and AA 6060 were subjected to high pressure steam treatment and various chemistries based on pH and oxidizing capabilities. Treatment is carried out in an autoclave at a temperature of 110 – 112 °C and pressure of 5 Psi for varying times. The growth and composition of the oxide layer was investigated in detail as a function of microstructure using GD-OES, FEG-SEM, EDX, FIB-SEM, XRD, and FTIR.Potentiodynamic polarization measurements and acid salt spray testing were used to study the corrosion behavior of the produced coatings. In average, thickness of the oxide layer formed was increased to ~1-1.5 µm with steam treatment and various chemistries, and the coverage on the surface was dependent on the microstructure of the alloy, particularly the composition of the intermetallics. Mechanism of the coating formation will be elucidated. <br/>