Laser additive manufacturing of oxide dispersion strengthened steels using laser-generated nanoparticle-metal composite powders

A new route for the synthesis of powder composites suitable for processing with laser additive manufacturing is demonstrated. The powder composites, consisting of micrometer-sized stainless steel powder, homogenously decorated with nano-scaled Y2O3 powder particles, are manufactured by laser process...

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Bibliographic Details
Published in:Procedia CIRP 2018, Vol.74, p.196-200
Main Authors: Wilms, Markus B., Streubel, René, Frömel, Felix, Weisheit, Andreas, Tenkamp, Jochen, Walther, Frank, Barcikowski, Stephan, Schleifenbaum, Johannes Henrich, Gökce, Bilal
Format: Article
Language:English
Subjects:
Laser additive manufacturing
ODS
Oxide dispersion strengthened materials
Pulsed laser ablation in liquids
Selective Laser Melting
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Summary:A new route for the synthesis of powder composites suitable for processing with laser additive manufacturing is demonstrated. The powder composites, consisting of micrometer-sized stainless steel powder, homogenously decorated with nano-scaled Y2O3 powder particles, are manufactured by laser processing of colloids and electrostatic deposition. Consolidated by laser metal deposition and selective laser melting, the resulting specimens show superior mechanical properties at elevated temperatures, caused by the nano-sized, homogenously distributed dispersoids.
ISSN:2212-8271
2212-8271
DOI:10.1016/j.procir.2018.08.093