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Meeting Materials Science & Technology 2019
Symposium Additive Manufacturing: Effective Production, Characterization, and Recycling of Powder Materials
Presentation Title Effects of Recycling PREP and Plasma Atomized Ti-6Al-4V Powder from LENS Process
Author(s) Courtney B. Morgan-Barnes, Ryan Stokes, Joseph Young, Linkan Bian, Matthew Priddy, Haley Doude, Jacob Easley
On-Site Speaker (Planned) Courtney B. Morgan-Barnes
Abstract Scope This study aims to investigate the effects of recycling on the properties of Ti-6Al-4V powder exposed to laser engineered net shaping (LENS) processes. PREP and Plasma-atomized powders from a single feedstock with different size distributions (i.e. small for 45-90 Ám sifted powder, large for 90-150 Ám sifted powder, and unsifted for the as received powder) and levels of usage (i.e. virgin for powder processed 0-1 times, used for 2-5 times, and used+ for 6-9 times) are considered in this study. A combination of LENS process parameters is employed using the Taguchi design method to narrow down significant parameters related to part performance. This study will report on powder analysis including chemical composition, oxygen analysis, morphology, size distribution, flowability, phase, and grain structure of samples. Understanding the role of powder morphology, porosity, phase, and oxygen content is required to develop robust processing parameters for additive manufacturing and reduce cost of production.
Proceedings Inclusion? 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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