Effect of powder reuse on physical, chemical and toxicological properties of 6061-Zr aluminum alloy processed by Laser Powder Bed Fusion (L-PBF) - Ecole Nationale des Travaux Publics de l'Etat Accéder directement au contenu
Article Dans Une Revue Matériaux & Techniques Année : 2023

Effect of powder reuse on physical, chemical and toxicological properties of 6061-Zr aluminum alloy processed by Laser Powder Bed Fusion (L-PBF)

Résumé

Laser Powder Bed Fusion (L-PBF) is an additive manufacturing process, which allows to produce metallic parts layer by layer. The reuse of the powder is critical for cost part. The reuse can modify the powder and thus the printed parts properties. This study is focused on a severe reuse of 6061-Zr by analyzing the physico-chemical features of the powder, their impact on both the printed parts and toxicological properties. The results of this study showed a high physico-chemical stability of 6061-Zr powder under severe reuse even if oxygen content increase on the reused powder. This study highlights the high amount of oxygen and the variation in chemical composition of the sieving residue. Besides, the toxicological properties of the powder and the mechanical features of the printed parts are unchanged. These results show that in addition to guaranteeing a specific particle size, sieving limits the oxygen increase and the chemical modification of the powder.
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Origine : Publication financée par une institution

Dates et versions

hal-04109263 , version 1 (29-05-2023)

Identifiants

Citer

Maxime Beal, Mohamed-Nour Azzougagh, Jérémie Pourchez, Philippe Bertrand, Elodie Cabrol, et al.. Effect of powder reuse on physical, chemical and toxicological properties of 6061-Zr aluminum alloy processed by Laser Powder Bed Fusion (L-PBF). Matériaux & Techniques, 2023, 111 (1), pp.103. ⟨10.1051/mattech/2023013⟩. ⟨hal-04109263⟩
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