| 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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Sket, Federico
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2022Influence of hybridisation on energy absorption of 3D woven composites under low-velocity impact loading. Modelling and experimental validationcitations
- 2021Thermophysical properties of porous Ti2AlC and Ti3SiC2 produced by powder metallurgycitations
- 2020Ultrafine eutectic Ti-Fe-based alloys processed by additive manufacturing – A new candidate for high temperature applicationscitations
- 2020Ultrafine eutectic Ti-Fe-based alloys processed by additive manufacturing – A new candidate for high temperature applicationscitations
- 2020Determination of damage mechanisms and damage evolution in fiber metal laminates containing friction stir welded thin foilscitations
- 2020Determination of damage mechanisms and damage evolution in fiber metal laminates containing friction stir welded thin foilscitations
- 2018Revealing the Effect of Local Connectivity of Rigid Phases during Deformation at High Temperature of Cast AlSi12Cu4Ni(2,3)Mg Alloyscitations
- 2018Influence of 3D connectivity of rigid phases on damage evolution during tensile deformation of an AlSi12Cu4Ni2 piston alloycitations
- 20163D microstructure and damage accumulation in a cast AlSi12Cu5Ni2 piston alloy as a function of solution Treatment
- 2016Prediction of intra- and inter-laminar failure of laminates using non-local damage-enhanced mean-field homogenization simulations
- 2016Load partition and microstructural evolution during in situ hot deformation of Ti-6Al-6V-2Sn alloyscitations
- 2016Histological response of soda-lime glass-ceramic bactericidal rods implanted in the jaws of beagle dogscitations
- 2015A study of composite laminates failure using an anisotropic gradient-enhanced damage mean-field homogenization modelcitations
- 2015An XFEM/CZM implementation for massively parallel simulations of composites fracturecitations
- 2015An in situ investigation of microscopic infusion and void transport during vacuum-assisted infiltration by means of X-ray computed tomographycitations
- 2014Microtomographic assessment of damage in P91 and E911 steels after long-term creepcitations
- 2014Mechanical behavior and failure micromechanisms of hybrid 3D woven composites in tensioncitations
- 2012Detailed damage mechanisms assessment in composite materials by means of X-ray tomography
- 2008Influence of nitridation on surface microstructure and properties of graded cemented carbides with Co and Ni binders
- 2006Influence of binder metal and surface treatment on the corrosion resistance of (W,Ti)C-based hardmetals
Places of action
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article
Ultrafine eutectic Ti-Fe-based alloys processed by additive manufacturing – A new candidate for high temperature applications
Abstract
High temperature laser powder bed fusion Eutectic Ti-Fe alloys Near-field synchrotron ptychographic X-ray computed tomography Ultrafine microstructures High temperature deformation a b s t r a c t The development of metals tailored to the metallurgical conditions of laser-based additive manufacturing is crucial to advance the maturity of these materials for their use in structural applications. While effort s in this regard are being carried out around the globe, the use of high strength eutectic alloys have, so far, received minor attention, although previous works showed that rapid solidification techniques can result in ultrafine microstructures with excellent mechanical performance, albeit for small sample sizes. In the present work, a eutectic Ti-32.5Fe alloy has been produced by laser powder bed fusion aiming at exploiting rapid solidification and the capability to produce bulk ultrafine microstructures provided by this processing technique. Process energy densities between 160 J/mm ³ and 180 J/mm ³ resulted in a dense and crack-free material with an oxygen content of ~0.45 wt.% in which a hierarchical microstructure is formed by μm-sized η-Ti 4 Fe 2 O x dendrites embedded in an ultrafine eutectic β-Ti/TiFe matrix. The microstructure was studied three-dimensionally using near-field synchrotron ptychographic X-ray computed tomography with an actual spatial resolution down to 39 nm to analyse the morphology of the eutectic and dendritic structures as well as to quantify their mass density, size and distribution. Inter-lamellar spacings down to ~30-50 nm were achieved, revealing the potential of laser-based additive manufacturing to generate mi-crostructures smaller than those obtained by classical rapid solidification techniques for bulk materials. The alloy was deformed at 600 °C under compressive loading up to a strain of ~30% without damage formation, resulting in a compressive yield stress of ~800 MPa. This study provides a first demonstration of the feasibility to produce eutectic Ti-Fe alloys with ultra-fine microstructures by laser powder bed fusion that are suitable for structural applications at elevated temperature.