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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing: Alloy Design to Develop New Feedstock Materials
Presentation Title Laser Additive Manufacturing of Nanocomposite Powders
Author(s) Bilal Gokce, Stephan Barcikowski
On-Site Speaker (Planned) Bilal Gokce
Abstract Scope During the past few years laser synthesis and processing of colloids (LSPC) has been established as an economically feasible synthesis method that addresses real-world problems. In this contribution, we show that by pH-controlled, colloidal adsorption of laser-generated nanoparticles on metal powders we are able to produce new composite materials that are highly relevant for powder-based 3D-printing methods such as laser powder bed fusion (LPBF). These composite powders contain a homogeneous distribution of nanoparticles on its surface. Due to the barrier-free surface of the small, highly dispersed colloidal nanoparticles, a high surface coverage can be achieved even with mass loadings of 0.1wt%, as will be shown for Y2O3 nanoparticles supported on steel powder that is used as feedstock for LPBF of ODS steels. Studies on L-PBF-built parts show that the homogeneity of the surface coverage can be transferred to the metal alloy part.


3D Characterization of Cracks Formed in “Weldable” AA6061 and Implications for Alloy Design
Accidental Alloy Development: In-situ Evolution of AM Powder and Opportunities for New Material Synthesis Pathways
An Interdisciplinary Approach for Alloy Design for Additive Manufacturing
Application of Taguchi, Response Surface, and Artificial Neural Networks for Rapid Optimization of Direct Metal Laser Sintering Process
CALPHAD Informed Design of Rare-earth Containing Alloys for Additive Manufacturing
Characterization of Spatter with Organized Features in Laser Powder Bed Fusion
Development of Oxidation Resistant Multi-Principle Element Alloys Applied with Additive Manufacturing
High-Throughput Accelerated Alloy Development
Laser Additive Manufacturing of Nanocomposite Powders
Mechanical Alloying of Feedstock Powder for Additive Manufacturing by Selective Laser Melting: Aluminum Alloy Matrix Composites
Micro-crack Mitigation by Alloy Modification in the Additively Manufactured Ni-base Superalloy CM247LC
Microstructure and Property Variability in DED Inconel 718 as a Function of Build Rate
Opportunities to Improve the Mechanical Properties of Titanium Alloys Produced by Laser Powder Bed Fusion
Optimization of Nitrogen-Atomized 17-4 Stainless Steel Feedstock for AM Processing
Processing of Y2O3-modified Nickel Superalloy by Selective Laser Melting.
Residual Stress Mitigation of Additive Manufactured Stainless Steel 316L Components through the Directed Energy Deposition Inclusion of TiC Nanoparticles
Sensitivity Analysis and Composition Design for Metal Additive Manufacturing Using CALPHAD-based ICME Framework

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