About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Powder Materials Processing and Fundamental Understanding
|
Presentation Title |
Powder Quality and Cold Spray Processability Changes with Environmental Exposure |
Author(s) |
Jack Grubbs, Bryer C Sousa, Danielle L Cote |
On-Site Speaker (Planned) |
Jack Grubbs |
Abstract Scope |
The success of powder-based additive manufacturing (AM) processes relies greatly upon feedstock powder quality, necessitating thorough pre-process characterization to understand powder properties and behavior and inform proper processing decisions. This is important when considering powder handling and storage prior to AM, during which detrimental flowability and moisture content changes may result from environmental exposure, potentially causing adverse downstream processing effects. This study aims to systematically investigate the property-processing-performance relationships of semi-spherical and ultra-spherical Al 2024 powders in cold spray (CS) in the context of environmental exposure. Accordingly, powder drying treatments were explored as a pre-CS step; powder property/behavior and CS processability changes were evaluated after controlled temperature/humidity exposure; and particle size-dependent moisture content changes were examined after exposure. From such findings, practical data-driven powder handling and CS processing guidelines were developed based upon powder characterization data to ensure consistently successful material processing |
Proceedings Inclusion? |
Planned: |
Keywords |
Other, Other, Other |