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Updated: Dec 9, 2025

Preparation and Reactivity of Gasless Nanostructured Energetic Materials

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Published on: April 2, 2015

Characterization of Thermally Treated Gas-Atomized Al 5056 Powder.

Kyle Tsaknopoulos¹, Caitlin Walde¹, Derek Tsaknopoulos¹

¹Material Science and Engineering Program, Department of Mechanical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.

Materials (Basel, Switzerland)

|September 16, 2020

Summary

This summary is machine-generated.

Understanding secondary phases in Aluminum 5056 (Al 5056) powders is key for additive manufacturing. Thermal treatments affect microstructure, with natural aging observed, impacting powder storage and consistency.

Keywords:

Al 5056 aluminum atomization cold spray powder rapid solidification

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Published on: December 4, 2020

Area of Science:

Materials Science
Metallurgy
Additive Manufacturing

Background:

Aluminum 5056 (Al 5056) is a work-hardenable alloy valued for corrosion resistance.
Emerging applications in additive manufacturing necessitate a deep understanding of Al 5056 powder characteristics.
Secondary phases in Al 5056 powders significantly influence the properties of final 3D-printed parts.

Purpose of the Study:

To investigate the impact of various thermal treatments on the microstructure of Al 5056 powders.
To correlate microstructural changes with thermodynamic predictions of phase stability.
To enhance the understanding of Al 5056 powder behavior for additive manufacturing applications.

Main Methods:

Utilized thermodynamic modeling to predict phase stability under different thermal conditions.
Employed transmission electron microscopy (TEM) for detailed microstructural analysis.
Applied energy-dispersive X-ray spectroscopy (EDS) for elemental composition analysis.

Main Results:

Characterized the microstructure of Al 5056 powders in as-atomized and thermally treated states.
Observed evidence of natural aging within the powders, indicating potential shelf-life considerations.
Validated thermodynamic model predictions with experimental microstructural observations.

Conclusions:

Thermal treatments significantly alter the microstructure of Al 5056 powders.
Natural aging affects powder properties, highlighting the importance of controlled storage.
Integrated TEM, EDS, and thermodynamic modeling provide comprehensive insights into Al 5056 powder metallurgy.