| 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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article
Thermal stability of hierarchical microstructural features in additively manufactured stainless steel
Abstract
Additive manufacturing of austenitic stainless steel results in an unconventional hierarchical microstructure. This hierarchical microstructure was investigated in detail in the as-built condition. The hierarchical microstructure consists of elongated austenite grains and melt pool fusion boundaries with a spherical cap morphology at the largest length scale. At a smaller length scale elongated columnar cell structures exist with elemental segregation at the cell walls. The cells were found not to be a misorientation structure in themselves as often noted, but rather groups of cells with a specific orientation, which are collected in 3-5 μm domains. At even smaller length scales, amorphous spherical silicates are found along with a high dislocation density along cell walls. The thermal stability of the unconventional features as melt pool boundaries, elongated austenite grains, cell domains, cell structure, amorphous precipitates was investigated systematically in the temperature range 400-1100 °C. The dislocation network forming the cell boundaries dissolves gradually and remains thermally stable up to about 800 °C. The melt pool boundaries are more thermally stable and dissolve above 900 °C. The elongated austenite grains and crystallographic texture are fully stable within the investigated temperature range. The cell domains appear to be pinned by precipitation as the cellular structure is dissolved and gradually straighten and resemble regular low angle grain boundaries. The amorphous silicates act as heterogeneous nucleation sites for the formation of σ-phase in the temperature range 700-800 °C, while at higher treatment temperatures these silicates are replaced by large, oblong Si-Mn oxides and small, round Mn-Cr oxides.