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Meeting Materials Science & Technology 2019
Symposium Additive Manufacturing: Effective Production, Characterization, and Recycling of Powder Materials
Organizer(s) James D. Paramore, US Army Research Laboratory
Ulf R. Ackelid, Freemelt AB
Sudarsanam S. Babu, University of Tennessee, Knoxville
Brady G. Butler, US Army Research Laboratory
Zhigang Zak Fang, University of Utah
Ola L. Harrysson, North Carolina State University
Don Li, Arconic Titanium & Engineered Products
Andrzej L. Wojcieszynski, ATI Specialty Materials
Scope This symposium welcomes topics on both experimental and modeling work. Furthermore, despite the title, this symposium is not limited to powder production for additive manufacturing and welcomes topics related to any powder-based manufacturing process.

In the deployment of powder-based processes, such as many additive manufacturing technologies, the production and characterization of quality powders is often taken for granted. However, the simple act of breaking a bulk material down into sufficiently small particles can be very energy-intensive, whether this is done via mechanical comminution, atomization, deposition, etc. Furthermore, most powder-based processing methods have strict requirements on the purity, flowability, and packing behavior of the feedstock. Therefore, the size distribution, morphology, chemistry, and other properties of the particles must be carefully characterized and controlled. For these reasons, powder materials suitable for particular applications can be notoriously difficult and/or expensive to produce. As such, there is a definite need in the industry to improve the energy/cost-efficiency of powder production, as well as develop effective recycling techniques to improve overall yield. Example topics for this symposium include, but are not limited to:

* Alloy/compositional design for a wide range of processes
* Gaps in existing methods for powder characterization (e.g. size, shape, chemistry, phase) and new methods to meet these gaps
* Role of powder characteristics with respect to specific manufacturing processes
* Analysis and/or improvement of powder production efficiency
* Methods for improving powder flowability/packing/purity
* Powder recycling methods
* Powder production from scrap or other low-cost sources

Abstracts Due 04/05/2019
Proceedings Plan Planned: At-meeting proceedings

Additive Manufacturing Alloys: Influence of Powder Preparation Method in Aluminum Matrix Composites
Assessment of 316L Stainless Steel Powder Produced from Recycled Machining Chips for Closed Lifecycle Additive-Subtractive Manufacturing
Characterization of Gas Atomized Aluminum Alloy Powder for Additive Manufacturing Applications
Characterization of Nickel-base Superalloy MAR-M247 Powders by Synchrotron X-ray Computed Tomography
Characterization of Titanium Powder Produced from Battlefield Scrap for Additive Manufacturing
Determination of Viscosity of Metal Melts by High Temperature Rheometry
Effects of Recycling PREP and Plasma Atomized Ti-6Al-4V Powder from LENS Process
Exploring the Feasibility of Cryomilled Aluminum Alloy 5083 as Feed Stock Material for Additive Manufacturing
Hydrogen Assisted Magnesiothermic Reduction (HAMR) for Making Low-oxygen Ti Powder
Metal Particulate Produced by Modulation-assisted Machining
P3-26: Identifying Correlations between Metal Powder Properties and Binder Jet Print Settings to Optimize Process
Potentials and Risks in Hybrid Manufacturing
Powder Specification Needs for Steels in the LPBF Process
Surface Area as a Powder Morphology Probe
Synchrotron X-ray CT of AM Feedstock Metal Powder: A Validation of Metallographic Porosity Measurements.
Understanding Powder Morphology and Its Effect on Flowability through Computer Vision and Machine Learning In Additive Manufacturing
Understanding Surface Area Measurement for Improved Powder Characterization

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