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Meeting Materials Science & Technology 2019
Symposium Additive Manufacturing: Effective Production, Characterization, and Recycling of Powder Materials
Presentation Title Exploring the Feasibility of Cryomilled Aluminum Alloy 5083 as Feed Stock Material for Additive Manufacturing
Author(s) Franklyn R. Kellogg, Andelle Kudzal, Ryan Rogers, Brandon McWilliams
On-Site Speaker (Planned) Franklyn R. Kellogg
Abstract Scope Due to its high strength and corrosion resistance aluminum alloy 5083 (AA5083) is an attractive candidate for many Army applications. Since this alloy has issues with cracking, AA5083 requires compositional changes before it can be readily used in laser based additive manufacturing (AM) techniques such as powder bed fusion (PBF). Cryomilling has been shown to induce morphological and surface chemistry changes to AA5083 that can sinter to full density at lower temperatures than with as-atomized AA508. Improved sinterability may correspond to improved properties during PBF and lead to higher density parts with less cracking. In this study, as-atomized AA5083 was cryomilled in liquid nitrogen and used as feedstock for PBF AM to determine if the cryomilling process could improve powder feedstock performance. The cryomilled powder was compared to the as-atomized powder to link PBF performance differences to characteristics such as morphology, powder flowability, nitrogen concentrations and powder packing densities.
Proceedings Inclusion? Planned: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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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