| 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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Gudla, Visweswara Chakravarthy
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2022Corrosion on high-frequency welded Al–1.1Mn–0.5Cu–0.1Ti micro-fin tubes externally cladded with Al–1.2Zn used for high-performance heat transfer applications
- 2021Microstructure‐dependent corrosion of herringbone‐grooved embossed Al–1.1 wt% Mn strips for heat exchanger tubescitations
- 2020Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131citations
- 2020On the microstructural and electrochemical nature of hydrothermally treated Al-Zr and Al-Ti surfacescitations
- 2019Characterization of blisters on powder coated aluminium AA5006 architectural profilescitations
- 2019Characterization of blisters on powder coated aluminium AA5006 architectural profilescitations
- 2019Initiation and short crack growth behaviour of environmentally induced cracks in AA5083 H131 investigated across time and length scalescitations
- 2019High frequency pulse anodising of recycled 5006 aluminium alloy for optimised decorative appearancecitations
- 2018A Mechanistic Study on the Structure Formation of NiCo2O4 Nanofibers Decorated with In Situ Formed Graphene-Like Structurescitations
- 2018Electrochemical profiling of multi-clad aluminium sheets used in automotive heat exchangerscitations
- 2018Influence of de-icing salt chemistry on the corrosion behavior of AA6016citations
- 2018Fluoride-Induced Interfacial Adhesion Loss of Nanoporous Anodic Aluminium Oxide Templates in Aerospace Structurescitations
- 2017Interface strength and degradation of adhesively bonded porous aluminum oxidescitations
- 2017Interface strength and degradation of adhesively bonded porous aluminum oxidescitations
- 2017Microstructural and corrosion issues of embossed and welded aluminium heat exchanger tubes
- 2017Investigation of moisture uptake into printed circuit board laminate and solder mask materialscitations
- 2016Band gap tuning of amorphous Al oxides by Zr alloyingcitations
- 2016High frequency pulse anodising of magnetron sputtered Al–Zr and Al–Ti Coatingscitations
- 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
- 2015Friction stir processed Al–TiO2 surface composites: Anodising behaviour and optical appearancecitations
- 2015Effect of High Frequency Pulsing on the Interfacial Structure of Anodised Aluminium-TiO2citations
- 2015Accelerated growth of oxide film on aluminium alloys under steam: Part I: Effects of alloy chemistry and steam vapour pressure on microstructurecitations
- 2015Friction stir processed Al-TiO 2 surface composites:Anodising behaviour and optical appearancecitations
- 2015High Frequency Anodising of Aluminium-TiO2 Surface Compositescitations
- 2015High frequency anodising of aluminium–TiO2 surface composites: Anodising behaviour and optical appearancecitations
- 2015Effect of High Frequency Pulsing on the Interfacial Structure of Anodized Aluminium-TiO2citations
- 2015High frequency anodising of aluminium-TiO 2 surface composites:Anodising behaviour and optical appearancecitations
- 2015Effect of High Frequency Pulsing on the Interfacial Structure of Anodised Aluminium-TiO 2citations
- 2015Steam assisted oxide growth on aluminium alloys using oxidative chemistries: Part I Microstructural investigationcitations
- 2015Friction stir processed Al–TiO 2 surface composites: Anodising behaviour and optical appearancecitations
- 2015Steam assisted oxide growth on aluminium alloys using oxidative chemistries:Part i Microstructural investigationcitations
- 2014Friction stir processed Al - Metal oxide surface composites: Anodization and optical appearance
- 2014Anodisation of sputter deposited aluminium–titanium coatings: Effect of microstructure on optical characteristicscitations
- 2014Anodisation of sputter deposited aluminium–titanium coatings: Effect of microstructure on optical characteristicscitations
- 2014Optical appearance of AC anodized Al/TiO 2 composite coatings
- 2014Anodisation of sputter deposited aluminium-titanium coatings:Effect of microstructure on optical characteristicscitations
- 2014Microstructure and optical appearance of anodized friction stir processed Al - Metal oxide surface composites
- 2014Anodization and Optical Appearance of Sputter Deposited Al-Zr Coatingscitations
- 2014Optical appearance of AC anodized Al/TiO2 composite coatings
- 2014Structure of anodized Al–Zr sputter deposited coatings and effect on optical appearancecitations
Places of action
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conferencepaper
Microstructural and corrosion issues of embossed and welded aluminium heat exchanger tubes
Abstract
Aluminium alloys are widely used in Heat, Ventilation, Air Conditioning and Refrigeration (HVAC&R) industry due to their excellent thermal conductivity in addition to tailorable corrosion resistance and ease of formability. Recent efforts in improving the performance of all Aluminium tube and fin-based heat exchangers has led to the development of increasingly complex inner surface patterns that has given the possibility to nearly triplicate the heat exchanging coefficients for these systems. Inner surface enhanced Aluminium tubes are produced by embossing of the required pattern onto Aluminium sheet, followed by sheets forming and welding into tubes. This two-stage process calls for understanding and optimization of the Aluminium metallurgy and also the effect on microstructure and electrochemistry of the produced embossed welded tube materials, with or without a brazing/sacrificial clad. The current work studies the effect of embossing and high frequency welding on a 3xxx series commercially available Al alloy sheet of interest for this application, cladded with a sacrificial AA7072 on the outer side. The microstructure of the embossed and welded tubes was studied using polarized light microscopy, SEM coupled to an EDS, FIB. The electrochemical behavior of the finished welded tubes was assessed using Seawater Acidified Tests and pH indicator gel tests. Results showed modification of the microstructure of the core alloy near the weld region and related changes to the electrochemical behavior near the heat affected region, because of which the weld region remained resistant to corrosion during exposure tests, thus influencing final corrosion performances of welded tube. The underlying microstructural and electrochemical phenomenon are presented and discussed.