| 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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Haubrich, Jan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Elucidating the challenges in the development and deployment of refractory complex concentrated alloys for additive manufacturingcitations
- 2024Elucidating the challenges in the development and deployment of refractory complex concentrated alloys for additive manufacturingcitations
- 2024Evolution of interphase stress over a crack propagation plane as a function of stress relief heat treatments in a PBF‐LB/M AlSi10Mg alloycitations
- 2024Changes in the morphology and chemistry of an oxidation-sensitive beta-Ti alloy powder during the processing steps of additive manufacturing
- 2024Enhancing surface quality of LPBF-manufactured aerospace components through chemical etching and non-destructive evaluation
- 2024Damage monitoring of pinned hybrid composite–titanium joints using direct current electrical resistance measurementcitations
- 2024Fuel Thermal Management and Injector Part Design for LPBF Manufacturing
- 2024NON-DESTRUCTIVE ANALYSIS OF CHEMICAL TREATMENT OF INTERNAL SHAPED CHANNELS IN LPBF INCONEL 718
- 2024LASER POWDER BED FUSION AND TESTING OF COMPRESSOR WHEELS FROM Gamma-TITANIUM ALUMINIDE TI48-2-2
- 2023Microstructure formation during laser powder bed fusion of Ti-22Al-25Nb with low and high pre-heating temperaturescitations
- 2023Strategies to accelerate the design, discovery, development and deployment of materials in the era of the digital transformation
- 2023Adhesion properties of the hybrid system made of laser-structured aluminium EN AW 6082 and CFRP by co-bonding-pressing processcitations
- 2021In Situ High‐Energy Synchrotron X‐Ray Diffraction Reveals the Role of Texture on the Activation of Slip and Twinning during Deformation of Laser Powder Bed Fusion Ti–6Al–4Vcitations
- 2021Interface‐Mediated Twinning‐Induced Plasticity in a Fine Hexagonal Microstructure Generated by Additive Manufacturingcitations
- 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
- 2020Ultrafine Fe-Fe2Ti eutectics by directed energy deposition: Insights into microstructure formation based on experimental techniques and phase field modellingcitations
- 2020Mapping the geometry of Ti-6Al-4V: From martensite decomposition to localized spheroidization during selective laser meltingcitations
- 2019Topology Optimization of a Star Tracker Camera Bracket
- 2018New aspects about the search for the most relevant parameters optimizing SLM materialscitations
- 2018Buried interfaces – A systematic study to characterize an adhesive interface at multiple scalescitations
- 2018Subsurface residual stress analysis in Ti-6Al-4V additive manufactured parts by synchrotron x-ray diffraction
- 2018Buried interfaces -a systematic study to characterize an adhesive interface at multiple scalescitations
- 2017Inducing Stable $alpha$ + $beta$ Microstructures during Selective Laser Melting of Ti-6Al-4V Using Intensified Intrinsic Heat Treatmentscitations
- 2017Using metastability to engineer the microstructure of Ti-6V-4Al produced by selective laser melting
- 2017Inducing Stable alpha plus beta Microstructures during Selective Laser Melting of Ti-6Al-4V Using Intensified Intrinsic Heat Treatmentscitations
- 2007Adsorption and Selective Hydrogenation of α, β-unsaturated Aldehydes on Pt(111) and Pt-Sn Model Catalysts
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.