About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
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Powder Materials Processing and Fundamental Understanding
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Presentation Title |
Microstructural Evolution of Aluminum Alloy Powders Through In-Situ TEM and DICTRA Simulations |
Author(s) |
Kyle L. Tsaknopoulos, Matthew Gleason, Stephen Price, Danielle Cote |
On-Site Speaker (Planned) |
Kyle L. Tsaknopoulos |
Abstract Scope |
In solid-state additive manufacturing, it is crucial to control the microstructure of metallic feedstock material, as it directly influences the properties of the final parts. Thermal processing is often used to manipulate the microstructure, tailoring the size, morphology, and distribution of secondary phases for desired material performance. In this study, the heat treatment of Al 6061 powder was explored, with particular focus on phase transformations and diffusion kinetics, for end use in cold spray (CS) applications. In-situ transmission electron microscopy (TEM) heating experiments were leveraged to closely monitor the powder’s microstructural evolution as a function of treatment time and temperature. The time-morphology data of secondary phases obtained from this experimentation can assist with the calibration and validation of DICTRA models. These models will allow for the optimization of heat treatment parameters, prediction of powder microstructures, and understanding of powder heat treatment effects on CS deposition and deposit properties. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Aluminum, Powder Materials |