| 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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Bastos Da Silva Fanta, Alice
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2023Thermal stability of hierarchical microstructural features in additively manufactured stainless steelcitations
- 2023Study in Phase-Transformation Temperature in Nitinol by In Situ TEM Heating
- 2023The effect of cyclic heat treatment on microstructure evolution during Plasma Arc Additive Manufacturing employing an SEM in-situ heating study
- 2023Probing the Effects of Cyclic Heating in Metal Additive Manufacturing by means of a Quasi in situ EBSD Study
- 2023Study of Phase-transformation Behavior in Additive Manufacturing of Nitinol Shape Memory Alloys by In Situ TEM Heating
- 2022Probing the role of grain boundaries in single Cu nanoparticle oxidation by in situ plasmonic scatteringcitations
- 2022Probing the role of grain boundaries in single Cu nanoparticle oxidation by in situ plasmonic scatteringcitations
- 2022Probing the role of grain boundaries in single Cu nanoparticle oxidation by in situ plasmonic scatteringcitations
- 2022High resolution crystal orientation mapping of ultrathin films in SEM and TEMcitations
- 2021Recent developments for the characterization of crystals and defects at the nanoscale using on-axis TKD in SEM
- 2021Challenges and perspectives of Transmission Kikuchi Diffraction for nanocrystalline materials characterization
- 2020Aminopropylsilatrane Linkers for Easy and Fast Fabrication of High-Quality 10 nm Thick Gold Films on SiO2 Substratescitations
- 2020Aminopropylsilatrane Linkers for Easy and Fast Fabrication of High-Quality 10 nm Thick Gold Films on SiO 2 Substratescitations
- 2019Metal-polymer hybrid nanomaterials for plasmonic ultrafast hydrogen detectioncitations
- 2018Optimal microstructural design for high thermal stability of pure FCC metals based on studying effect of twin boundaries character and network of grain boundariescitations
- 2017Influence of Ti and Cr Adhesion Layers on Ultrathin Au Filmscitations
- 2017Iron Oxide Films Prepared by Rapid Thermal Processing for Solar Energy Conversioncitations
- 2017Time-of-Flight Three Dimensional Neutron Diffraction in Transmission Mode for Mapping Crystal Grain Structurescitations
- 2017Time-of-Flight Three Dimensional Neutron Diffraction in Transmission Mode for Mapping Crystal Grain Structurescitations
- 2013Partial transformation of austenite in Al-Mn-Si TRIP steel upon tensile straining: an in situ EBSD studycitations
- 20093-D Analysis of Graphite Nodules in Ductile Cast Iron Using FIB-SEM
- 2008Three-dimensional EBSD study on the relationship between triple junctions and columnar grains in electrodeposited Co-Ni filmscitations
- 2007Orientation microscopy on nanostructured electrodeposited NiCo-Films
Places of action
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conferencepaper
The effect of cyclic heat treatment on microstructure evolution during Plasma Arc Additive Manufacturing employing an SEM in-situ heating study
Abstract
Processing of materials far from equilibrium conditions, i.e., at extreme temperature gradients (up to 10<sup>6</sup> K/m) and/or rapid temperature changes (up to 10<sup>5</sup> K/s), as in additive manufacturing (AM), causes the formation of metastable phases and induce directional microstructural alterations with a significant impact on overall part properties. While a part is subsequently being built layer-by-layer, previously formed layers are subjected to cyclic heat input that can result in element diffusion, phase transitions, and/or modifications of the grain morphology. As a result, the microstructure of near-net-shape AM components varies across the component leading to local- and design-specific variations in application-critical properties.<br/><br/>To capture these structural variations and identify significant trends, new approaches in material characterization are required. In the present work, in-situ SEM methods to understand the complex spatial-temporal thermal transients experienced by AM components during fabrication and post-processing have been developed. This study is critical for understanding and utilizing the influence of variable heat input to control the microstructure of AM-manufactured components, the optimization of process parameters as well as the design of new alloys by allowing to simulate the far-from-equilibrium processing conditions.<br/><br/>Supported by COMSOL simulations, in-situ SEM heating studies using a MEMS heater were performed to mimic AM rapid thermal conditions and to understand dynamic solid-state processes during AM. The microstructural changes were investigated by electron backscatter diffraction (EBSD) and compared to the final microstructure of different layers. The conducted study allows drawing conclusions on the feasibility of SEM-based heating experiments to reproduce microstructures development during the Plasma Arc Additive manufacturing process.