|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals, and Materials
||Three Dimensional Characterization of Powder Al Alloys and the Effects of Thermal Processing
||Caitlin Walde, Danielle Cote, Victor K. Champagne, Richard Sisson
|On-Site Speaker (Planned)
Gas-atomized metallic powders are commonly used in additive manufacturing processes. While their post-process consolidated properties are widely studied, there is little research on the properties of the powders before consolidation. Understanding the powder characteristics before use in additive manufacturing could lead to fine-tuning properties of additively manufactured materials. As powder properties and characteristics differ greatly from their wrought counterparts, it is important to fully understand the unique structure of these powders. This research characterizes three-dimensionally the grain structure and secondary phases of aluminum alloy powders after various thermal processes. This is accomplished through the use of a serial sectioning technique that combines SEM images and EBSD results of numerous planes throughout the powder particles. Secondary phases are further analyzed using TEM/STEM and DSC.
||Planned: None Selected