| 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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Matthews, David
University of Twente
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (35/35 displayed)
- 2023Tribological behaviour of a synthetic synovial fluid and polyurethane in biomedical implantscitations
- 2023Pulse length selection in bipolar HiPIMS for high deposition rate of smooth, hard amorphous carbon filmscitations
- 2022Wavelength dependence of picosecond-pulsed laser ablation of hot-dip galvanized steelcitations
- 2021Investigating AlSi coating fracture at high temperatures using acoustic emission sensorscitations
- 2021External magnetic field guiding in HiPIMS to control sp3fraction of tetrahedral amorphous carbon filmscitations
- 2021Understanding the generation of wear particles in cold rolling processescitations
- 2021Noble gas control of diamond-like content and compressive stress in carbon films by arc-mixed mode high power impulse magnetron sputteringcitations
- 2020Experimental validation of contact models for cold-rolling processescitations
- 2019Method for Laser Surface Treatment of Furnace Furniture
- 2019Laser metal deposition of vanadium-rich high speed steel: Microstructuraland high temperature wear characterizationcitations
- 2019Investigation of the ultrashort pulsed laser processing of zinc at 515 nmcitations
- 2019Fabricating Laser-Induced Periodic Surface Structures on Medical Grade Cobalt–Chrome–Molybdenumcitations
- 2019Wear characterization of multilayer laser cladded high speed steelscitations
- 2019Directed energy deposition and characterization of high-carbon high speed steelscitations
- 2018Wear characterization of thick laser cladded high speed steel coatings
- 2018Modeling crack initiation in Al-Si coating during heating/quenching phase of hot stamping process
- 2018Development and characterization of multilayer laser cladded high speed steelscitations
- 2018The effects of temperature on friction and wear mechanisms during direct press hardening of Al-Si coated ultra-high strength steelcitations
- 2018Cladding of Tribaloy T400 on Steel Substrates using a High Power Ndcitations
- 2018Contact Force Measurement in an Operational Thrust Bearing using PVDF Film at the Blade and Pad Passing Frequenciescitations
- 2018An insight in friction and wear mechanisms during hot stampingcitations
- 2017Measurement of pressure fluctuations inside a model thrust bearing using PVDF sensorscitations
- 2017Friction and Wear Mechanisms During Hot Stamping of AlSi Coated Press Hardening Steelcitations
- 2017Finger pad friction and tactile perception of laser treated, stamped and cold rolled micro-structured stainless steel sheet surfacescitations
- 2017Texture design for light touch perceptioncitations
- 2014Laser texturing of imprinting dies using nanosecond pulses. Applications for automotive industry
- 2013Optimizing hydraulic descaler performance through improved monitoring and maintenance
- 2009Laser engineered surfaces from glass forming alloy powder precursorscitations
- 2008An electron microscopy appraisal of tensile fracture in metallic glassescitations
- 2007Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers
- 2007Tribological and mechanical properties of high power laser surface-treated metallic glassescitations
- 2006Scratch test induced shear banding in high power laser remelted metallic glass layerscitations
- 2006Wear properties of metal matrix composite layers prepared by high power laser on Ti-Al-V substrate
- 2006Metallic glass layers produced by high power lasers
- 2005Sliding wear resistance of metal matrix composite layers prepared by high power lasercitations
Places of action
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document
Modeling crack initiation in Al-Si coating during heating/quenching phase of hot stamping process
Abstract
In hot-stamping processes, Al-Si coating is generally applied on the steel substrate to avoid decarburization and to enhance corrosion resistance of the hot-stamped parts. However, during hot stamping, the AlSi coating fractures due to thermal and mechanical loads. This deteriorates the surface quality of the stamped parts, increasing tool wear and friction between the stamping tool and coated sheet metal. These cracks are generally initiated during the heating and/or quenching phase due to phase transformations and thermal loads. The initiation of the cracks in the coating can be largely influenced by the evolution of coating microstructure, i.e. intermetallic compounds- FexAly, each of which has different thermal and mechanical properties. These intermetallic compounds are formed during the heating phase and grow in a natural order of increasing iron content in the layers close to the substrate-coating interface.<br/><br/>The goal of this study is to investigate the initiation of cracks in the coating during quenching stage due to thermal loads only. Heat treatment experiments are conducted on the Al-Si coated hot-stamping steel at different austenitization temperatures, dwell times and cooling rates. The distribution of voids/micro-cracks and intermetallic compounds in the coating are examined via digital microscopy and SEM/EDX measurements, respectively. A thermal-structural finite-element model is built to predict the crack initiation in Al-Si coating during quenching; the model accounts for the spatial distribution and mechanical properties of different intermetallic compounds. The results show large strain localization around the voids due to thermal loads during quenching, leading to micro-cracks towards the surface.