|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
||Manufacturing of Oxide Dispersed Nickel Base Alloy by Laser Powder Bed Fusion from Powders Elaborated by Different Processes
||Cécile Blanc, Olivier Hercher, Jérôme Varlet, Fernando Lomello, Hicham Maskrot, Pascal Aubry
|On-Site Speaker (Planned)
Laser Powder Bed Fusion (LPBF) allows innovative design with complex geometries and offer new perspectives to develop new alloys with tailored the functional properties. Recent publications reports that addition of oxides to generate nano-dispersed particles into the base material can increase its mechanical, irradiation and corrosion properties. Therefore, this article proposes to study in the influence of Y2O3 addition on the microstructure of additively manufactured Inconel 718. Processes such as mechanical mixing and Physical Vapor Deposition have been evaluated to integrate nanometric oxide particles in the base material. However, the addition of oxide requires an adaptation of the LPBF process parameters. Main parameters as process speed, laser power, hatching distance, and scanning strategies are considered for each oxide insertion process. Finally, macro and microstructures are analyzed and conclusion are given on the potentialities and limitations of each manufacturing condition and type of nanometric integration process.
||Additive Manufacturing, Copper / Nickel / Cobalt, Powder Materials