| Téléchargement | - Voir la version de l’auteur : Powder characterization using X-ray tomography and image analysis (PDF, 629 Kio)
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| Auteur | Rechercher : Bernier, Fabrice1; Rechercher : Pelletier, Roger1; Rechercher : Lefebvre, Louis-Philippe1 |
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| Affiliation | - Conseil national de recherches du Canada. Automobile et les transports de surface
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| Format | Texte, Article |
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| Conférence | 2016 International Conference on Powder Metallurgy and Particulate Materials, Powdermet 2016, June 5-8, 2016, Boston, USA |
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| Résumé | Large scale deployment of additive manufacturing (AM) processes relies on part quality, specifically the presence of internai defects and part-to-part consistency. Sorne of the defects observed in finished parts have been associated with porosities in the powder feedstock used in AM processes including powder bed, laser cladding,and cold spray. Since the level of porosity in these powders is generally very low, standard characterization techniques, such as pycnometry and metallography with image analysis, are not well suited for quantification. This study presents a new approach combining high resolution X ray tomography with 3D image analysis to evaluate and quantify porosity in titanium powder feedstock. The effects of acquisition parameters and image analysis procedures on porosity quantification were investigated to validate the proposed method and assess its reliability. Data demonstrates that the proposed technique is sufficiently sensitive to differentiate powders with different porosity levels. |
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| Date de publication | 2016-06-08 |
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| Maison d’édition | Metal Powder Industries Federation |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23000757 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 485f564f-02ba-4ff8-81fb-8ff44941c4d2 |
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| Enregistrement créé | 2016-09-12 |
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| Enregistrement modifié | 2021-09-27 |
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