| People | Locations | Statistics |
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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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Kosari, Ali
Thermo Fisher Scientific (Netherlands)
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 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
- 2022Microstructure, mechanical, and corrosion properties of Zr1-xCrxBy diboride alloy thin films grown by hybrid high power impulse/DC magnetron co-sputteringcitations
- 2021Editors' Choice - Dealloying-Driven Cerium Precipitation on Intermetallic Particles in Aerospace Aluminium Alloyscitations
- 2021Nanoscopic and in-situ cross-sectional observations of Li-based conversion coating formation using liquid-phase TEMcitations
- 2021Laterally-resolved formation mechanism of a lithium-based conversion layer at the matrix and intermetallic particles in aerospace aluminium alloyscitations
- 2020Dealloying-driven local corrosion by intermetallic constituent particles and dispersoids in aerospace aluminium alloyscitations
- 2020In-situ nanoscopic observations of dealloying-driven local corrosion from surface initiation to in-depth propagationcitations
- 2020Cross-sectional characterization of the conversion layer formed on AA2024-T3 by a lithium-leaching coatingcitations
- 2020Corrosion resistance of hot-dip galvanized steel in simulated soil solutioncitations
- 2020Effect of simulated brazing on the microstructure and corrosion behavior of twin roll cast AA3003citations
- 2019Characterization of the passive layer on ferrite and austenite phases of super duplex stainless steelcitations
- 2019Effect of brazing on the microstructure and corrosion behaviour of a twin roll cast Al-Mn-Fe-Si alloy system
- 2018Enhanced corrosion protection of mild steel by the synergetic effect of zinc aluminum polyphosphate and 2-mercaptobenzimidazole inhibitors incorporated in epoxy-polyamide coatingscitations
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document
Effect of brazing on the microstructure and corrosion behaviour of a twin roll cast Al-Mn-Fe-Si alloy system
Abstract
The Al-Mn-Fe-Si alloy systems, produced via Twin Roll Casting (TRC), are mostly used in applications where a good corrosion resistance is required like brazing applications, for example heat exchanger systems in vehicles. While the TRC manufacturing method allows for a high production rate, it can cause some complications for the microstructure, such as centre line segregation (CLS). This CLS is the chemical segregation of the alloying elements occurring at the centre plane of the thickness and readily has an influence on corrosion characteristics of the materials.<br/>In this work the effect of a brazing step on the microstructure and corrosion behaviour of a TRC Al-Mn-Fe-Si alloy system was studied. Moreover, the effect of brazing on the corrosion properties of the centre line segregation of alloying elements (CLS) and the interaction of the intermetallic particles with the surrounding matrix was studied. In this study optical microscopy, SEM/EDS (scanning electron microscopy/ energy dispersive spectroscopy), HAADF-STEM/EDS (high-angle annular dark field-scanning transmission electron microscopy/ energy dispersive spectroscopy), AFM/SKPFM (atomic force microscopy/ scanning Kelvin probe force microscopy), potentiodynamic polarization and potentiostatic polarization were used to characterize the microstructure and corrosion behaviour. It was shown that the cross sections are significantly more active than the surface of the fin material, showing the importance of the CLS on the corrosion behaviour. Furthermore, it was shown that the pitting corrosion activity and penetration depth of the formed pits on the exposed cross sections decreased considerably after brazing, especially near the CLS. SKPFM measurements showed that after brazing the contact potential difference between the intermetallic particles and the matrix reduced significantly.<br/>