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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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Jinschek, Joerg R.
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2023Effect of electron dose rate on the total dose tolerance limit in ZIF 8 metal organic framework (MOF)
- 2023Microstructural Evolution of One and Two step Heat Treatments on Electron Beam Powder Bed Fusion Fabricated Haynes 282
- 2023Microstructural Heterogeneities in Electron Beam Additively Manufactured Haynes 282
- 2023Observations of ‘far from equilibrium’ phenomena under in reactor thermal conditions using in situ TEM
- 2023In situ TEM observations of thermally activated phenomena under additive manufacturing process conditions
- 2023Strengthening of Pre-treated Aluminum During Ultrasonic Additive Manufacturing
- 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
- 2023In-situ S/TEM Visualization of Metal-to-Metal Hydride Phase Transformation of Magnesium Thin Films
- 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
- 2023Study of Phase-transformation Behavior in Additive Manufacturing of Nitinol Shape Memory Alloys by In Situ TEM Heating
- 2023Quantification of Microstructural Heterogeneities in Additively Manufactured and Heat-Treated Haynes 282
- 2022Preface to the special issuecitations
- 2022Strengthening of pretreated aluminum during ultrasonic additive manufacturingcitations
- 2009The Titan Environmental Transmission Electron Microscopecitations
Places of action
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conferencepaper
Microstructural Heterogeneities in Electron Beam Additively Manufactured Haynes 282
Abstract
Additive manufacturing(AM) has gained popularity due to the possibility of fabricating near net shapes of complex geometries with limited material waste and post processing. Haynes 282 is a precipitation strengthened Ni-based superalloy that has been found a good candidate for AM, such as electron beam powder bed fusion (PBF-EB), due to its good weldability that primarily comes from its low volume fraction of gamma prime (γ’) phase. Haynes 282 has applications in high temperature industrial gas turbine engines due to its thermal stability and high temperature creep resistance. Its improved performance at high temperatures has been attributed to the presence of the gamma prime (γ’) phase [1].<br/><br/>However, there are fundamental challenges related to the development of AM fabrication processes that need to be understood. PBF-EB processing can result in large thermal gradients and rapid temperature cycling. The resulting microstructure is a non-ideal columnar morphology commonly seen in AM that differs significantly from conventionally processed wrought alloys. In this work, microstructural heterogeneities in PBF-EB Haynes 282 were systematically characterized as a function of EBM-PBF process parameters such as build height, scan length, and scan velocity. Particular focus was on the size and morphology of the gamma prime (γ’) precipitates, MC carbides, and matrix gamma (γ) grains.