| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Investigating Particle Size-shape Effects on Flowability and Moisture Content of Metallic Powders after Environmental Exposure for Additive Manufacturing Applications |
| Author(s) |
Jack Grubbs, Brent Ditzler, Aaron Birt, Danielle Cote |
| On-Site Speaker (Planned) |
Jack Grubbs |
| Abstract Scope |
Properly controlling powder properties, such as flowability and moisture content, is essential for successful processing in additive manufacturing (AM). During powder handling and storage, powder properties can change after exposure to the ambient temperature and humidity, necessitating a root-cause analysis of factors influencing powder properties to best understand their variation with environmental exposure. Particle size distribution (PSD), size, and morphology have all been shown to be critical factors affecting these properties. Therefore, it is the aim of this study to systematically evaluate particle size-shape effects on flowability and moisture content after exposure to controlled laboratory conditions. Particle size and PSD were varied through mechanical sieving, while morphology was manipulated by surveying powders atomized through different methods. This study will ideally inform AM powder users of how to best handle and store their specific size and shape powder to mitigate property degradation prior to AM processing. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Powder Materials, Additive Manufacturing, Characterization |