| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Minea, Tiberiu
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Vapor chemical composition in Electron Beam Powder Bed Fusion using Ti-6Al-4V powder
- 2023Impact of self-sputtering in high power impulse magnetron sputtering (HiPIMS) with heliumcitations
- 2023Spatiotemporal characterization of evaporated atoms during electron beam melting additive manufacturing by advanced laser diagnosticscitations
- 2023The Use of Sacrificial Graphite-like Coating to Improve Fusion Efficiency of Copper in Selective Laser Meltingcitations
- 2022Saturation pressure of nonequilibrium titanium evaporation during additive manufacturing by electron powder bed fusioncitations
- 2022Saturation pressure of nonequilibrium titanium evaporation during additive manufacturing by electron powder bed fusioncitations
- 2021Modeling of high power impulse magnetron sputtering discharges with graphite targetcitations
- 2021Behavior of high current density pulsed magnetron discharge with a graphite targetcitations
- 2021Phototribology: control of friction by lightcitations
- 2020Low resistivity amorphous carbon-based thin films employed as anti-reflective coatings on coppercitations
- 2019Tuning high power impulse magnetron sputtering discharge and substrate bias conditions to reduce the intrinsic stress of TiN thin filmscitations
- 2018Influence of backscattered neutrals on the grain size of magnetron-sputtered TaN thin filmscitations
- 2017Benefits of energetic ion bombardment for tailoring stress and microstructural evolution during growth of Cu thin filmscitations
- 2017Epitaxial growth of Cu(001) thin films onto Si(001) using a single-step HiPIMS processcitations
Places of action
| Organizations | Location | People |
|---|
article
Spatiotemporal characterization of evaporated atoms during electron beam melting additive manufacturing by advanced laser diagnostics
Abstract
International audience ; Electron powder bed fusion (E-PBF) is an additive manufacturing technology used to produce parts layer-wise for advanced aerospace, biomedical, and other applications. Precise control over the energy transferred to the powder by the electron beam is key to further process improvements. Here, we used tunable diode laser absorption spectroscopy to characterize the evaporated titanium atoms above the molten area of a TA6V powder alloy, and, thus, the effects of the energy transferred to it by the electron beam. This unconventional diagnostic tool achieves analyses at very high temporal (<1 μs) and spatial (<100 μm) resolutions, thus, offering valuable information on the microsecond-scale dynamics of the micro-melting zone and the effectiveness of the electron beam spot at diameters as small as ∼200 μm. Our measurements highlighted sharp fluctuations during the evaporation process that were independent of the power and scan speed of the electron beam; instead, the molten pool surface itself seems to drive these fluctuations. Our analysis also documented the shape and density of the vapor plume, which was oriented perpendicular to the surface under common E-PBF conditions.