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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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Gonzalez-Garcia, Yaiza
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Review of the state of art of Li-based inhibitors and coating technology for the corrosion protection of aluminium alloyscitations
- 2024Albumin Protein Impact on Early-Stage In Vitro Biodegradation of Magnesium Alloy (WE43)citations
- 2024Spatiotemporally resolved corrosion protection of AA2024-T3 by a lithium-based conversion layercitations
- 2024Effects of grain boundary chemistry and precipitate structure on intergranular corrosion in Al-Mg-Si alloys doped with Cu and Zncitations
- 2023Corrosion and passive film characteristics of 3D-printed NiTi shape memory alloys in artificial salivacitations
- 2023Local scanning electrochemical microscopy analysis of a lithium-based conversion layer on AA2024-T3 at progressive stages of formationcitations
- 2023Passive film formation and corrosion resistance of laser-powder bed fusion fabricated NiTi shape memory alloyscitations
- 2023Challenges and Strategies for Optimizing Corrosion and Biodegradation Stability of Biomedical Micro‐ and Nanoswimmers: A Reviewcitations
- 2022Evaluation of the formation and protectiveness of a lithium-based conversion layer using electrochemical noisecitations
- 2022Localised aqueous corrosion of electroless nickel immersion gold-coated coppercitations
- 2022Passive Film Properties of Martensitic Steels in Alkaline Environment: Influence of the Prior Austenite Grain Sizecitations
- 2022Corrosion and Microstructural Investigation on Additively Manufactured 316L Stainless Steel: Experimental and Statistical Approachcitations
- 2021Editors' Choice - Dealloying-Driven Cerium Precipitation on Intermetallic Particles in Aerospace Aluminium Alloyscitations
- 2020Effect of surface roughness and chemistry on the adhesion and durability of a steel-epoxy adhesive interfacecitations
- 2019Self-healing epoxy nanocomposite coatings based on dual-encapsulation of nano-carbon hollow spheres with film-forming resin and curing agentcitations
- 2018Properties and performance of spin-on-glass coatings for the corrosion protection of stainless steels in chloride media
- 2018Additively manufactured biodegradable porous ironcitations
- 2017Use of local electrochemical methods (SECM, EC-STM) and AFM to differentiate microstructural effects (EBSD) on very pure coppercitations
- 2017Electrochemical evaluation of corrosion inhibiting layers formed in a defect from lithium-leaching organic coatingscitations
- 2017Corrosion Resistance of AISI 316L Coated with an Air-Cured Hydrogen Silsesquioxane Based Spin-On-Glass Enamel in Chloride Environmentcitations
- 2016Micro-biologically induced steel corrosion and corrosion control in simulated marine environment
- 2016Active and passive protection of AA2024-T3 by a hybrid inhibitor doped mesoporous sol-gel and top coating systemcitations
- 2015Active and passive corrosion protection of AA2024-T3 by an hybrid inhibitor doped mesoporous sol-gel and top coating system
- 2015Active and passive corrosion protection of AA2024-T3 by an hybrid inhibitor doped mesoporous sol-gel and top coating system
- 2015On the application of scanning microelectrochemical techniques to study the active protection offered by inhibitor loaded mesoporous sol-gel films
- 2015Active corrosion protection of AA2024-T3 by an hybrid inhibitor doped mesoporous sol-gel and top coating system
- 2011A combined mechanical, microscopic and local electrochemical evaluation of self-healing properties of shape-memory polyurethane coatings (available online)
Places of action
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article
Effect of surface roughness and chemistry on the adhesion and durability of a steel-epoxy adhesive interface
Abstract
This work focuses on the effect of surface roughness and surface chemistry on the initial adhesion strength and corrosive de-adhesion properties of adhesive bonds. The adherend used in this study is a S690 low-alloy steel whereas the adhesive is a 2-component epoxy-amine adhesive (Araldite 2015). The steel surface is subjected to different surface pre-treatment methods such as mechanical abrasion, grit blasting, zirconium conversion treatment and silane treatment. The effect of these different pre-treatments on the surface morphology, roughness and chemistry is addressed. Single-lap joint tests were performed at ambient conditions to assess the initial bond strength of the joint. Static wedge tests were performed in saltwater immersions to study the environmental ageing of the adhesive joints. Unloaded delamination of adhesive films from the steel surface was studied by means of scanning Kelvin probe (SKP) at high relative humidity. This unique combination of different techniques allows thorough evaluations of the bond performance under different environmental and loading conditions. Experimental results indicate that surface roughening plays an important role in the initial adhesion in the single-lap joint test but a minor role in the durability of the bonded steel surfaces. The improved initial adhesion is mainly attributed to the increased interfacial bond area at higher surface roughness. The presence of complex texture or morphology shows a more profound effect than the average roughness on both the initial adhesion and the durability of the interfacial adhesion. The results from the static wedge test show the large contribution of mechanical interlocking, caused by texturing of the surface, on the durability of the interfacial adhesion. In the absence of complex texture, surfaces with altered chemistry by zirconium- or silane treatment exhibit a significant increase of the initial bonding strength due to enhanced physicochemical interactions across the interface. Assessment of the interfacial delamination kinetics by SKP show that despite the absence of any surface topography, chemically altered surfaces prove to have higher resistance to delamination.