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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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Thielsch, Juliane
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Topics
Publications (9/9 displayed)
- 2024Morphological evaluation of β-Ti-precipitation and its link to the mechanical properties of Ti-6Al-4V after laser powder bed fusion and subsequent heat treatmentscitations
- 2024Manufacturing of Complex NiTi Geometries with LPBF and Adapted Scanning Strategies
- 2022Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formationcitations
- 2022Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formation
- 2022Additive Manufacturing of Binary Ni–Ti Shape Memory Alloys Using Electron Beam Powder Bed Fusion: Functional Reversibility Through Minor Alloy Modification and Carbide Formation
- 2022Influence of Storage, Processing and Reconditioning on Ti-6Al-4V ELI Powder Characteristics for Laser Powder Bed Fusion
- 2021Unexpected coercivity enhancement > 1 T for Nd-Fe-B permanent magnets with 20 wt.% Nd produced by laser powder bed fusion
- 2021Fused Filament Fabrication of NiTi Components and Hybridization with Laser Powder Bed Fusion for Filigree Structurescitations
- 2019Influence of substrate plate heating on the properties of an additively manufactured Cu-Al-Ni-Mn shape-memory alloy ; Einfluss einer Substratheizung auf die Eigenschaften einer additiv hergestellten Cu-Al-Ni-Mn Formgedächtnislegierung
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article
Morphological evaluation of β-Ti-precipitation and its link to the mechanical properties of Ti-6Al-4V after laser powder bed fusion and subsequent heat treatments
Abstract
The microstructural properties of additively manufactured Ti-6Al-4V depend strongly on the heat treatment after Laser Powder Bed Fusion. Among others the evaluation of morphological characteristics of β-Ti precipitates allows a fast and objective way to distinguish between different metallurgical conditions with different mechanical properties based on an automated analysis of high-resolution SEM images. High temperature heat treatment and hot isostatic pressing improve the mechanical properties while also reducing the scattering of results, leading to better predictable performance. Similar and subjectively not distinguishable microstructural conditions are observed after applying low temperature heat treatments of different sample batches with comparable UTS of app. 1100 MPa but very different elongation at break between 0.3 % and 6.5 %. Advanced classification methods based on machine learning and classical statistics allow a reliable distinction of almost identical microstructural conditions. Their specific characteristics in terms of required expert domain knowledge, general performance and interpretability of their results are discussed. ; 913