64369 2025 eng 1 9 conferenceobject EPMA 0 -- -- -- Influence Of Initial Powder Oxidation Level On Process-induced Material Degradation During The Laser Powder Bed Fusion Of Nickel-based Haynes 282 This study examines the impact of varying oxidation levels in nickel-based Haynes 282 powder on particle degradation during laser powder bed fusion (PBF-LB|M). Four powder batches with oxygen content levels of approximately from 140 ppm to1400 ppm were processed using PBF-LB|M. A powder collection container was fabricated to sample unmelted powder from heat-affected regions of the powder bed. Recoating and melting proceeded without issues; however, increased fume emissions were observed at higher oxidation levels, indicating intensified spatter formation. Post-process analysis revealed that finer particles exhibited greater surface oxidation due to their higher surface-to-volume ratio. Despite significant oxygen uptake, chemical analysis showed no measurable changes in key alloying elements in either the unmelted or spatter particles. Additionally, changes in particle size distribution became more pronounced at high oxidation levels. These findings provide a basis for understanding oxidation-driven degradation and optimizing powder reuse strategies to maintain material performance. Euro PM2025 Proceedings 10.59499/EP256767986 true proceedings-article crossref PersonAuthorFirstName_1,PersonAuthorLastName_1,PersonAuthorFirstName_2,PersonAuthorLastName_2,PersonAuthorFirstName_3,PersonAuthorLastName_3,PersonAuthorFirstName_4,PersonAuthorLastName_4,EnrichmenteventName,PublisherName,TitleMain_1,TitleAbstract_1,TitleParent_1,PublishedYear Euro Powder Metallurgy 2025 Congress & Exhibition 14.09.2025 doi-import 17.09.2025 Glasgow, United Kingdom false true Josué Dávila Rafael Kleba-Ehrhardt Gunther Mohr Kai Hilgenberg eng uncontrolled Recycling eng uncontrolled Additive manufacturing eng uncontrolled Laser powder bed fusion (PBF-LB/M) eng uncontrolled Powder quality eng uncontrolled Powder degradation eng uncontrolled Powder oxidation eng uncontrolled Spatter particles eng uncontrolled Particles ejected eng uncontrolled Powder reuse Ingenieurwissenschaften und zugeordnete Tätigkeiten 9 Komponentensicherheit Material Verlagsliteratur Datei im Netzwerk der BAM verfügbar ("Closed Access") 9.0 Abteilungsleitung und andere Additive Fertigung