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Meeting Materials Science & Technology 2019
Symposium Additive Manufacturing: Effective Production, Characterization, and Recycling of Powder Materials
Presentation Title Determination of Viscosity of Metal Melts by High Temperature Rheometry
Author(s) Christopher Giehl, Mario Kleindienst, Daniela Ehgartner
On-Site Speaker (Planned) Daniela Ehgartner
Abstract Scope Rheometry is a fairly common applied technique in a broad range of applications. In metal industry, however, rheometry is a novelty due to a lack of existing devices that bring the required sensitivity to measure the low viscosities of metal melts at very high temperatures. We here present quantitative data of viscosity measurements on different metal alloys used for the production of metal powder for additive manufacturing that were obtained by a special high temperature searle-type rheometer with a concentric cylinder measuring system. Besides surface tension viscosity is a crucial value for the process of gas atomisation and responsible for the quality of the produced metal powder.
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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