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September 17, 2026Journal of materials research/Pratt's guide to venture capital sourcesOpen Access

Physicochemical characterization and solidification kinetics of modified Al–Cu–(Ce)-based gas-atomized powders for PBF-LB

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Authors

NRN. Rojas-AriasMSM. F. Soler-LópezFCF.G. Coury

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Overview

Experimental study demonstrates enhanced flowability and microstructural refinement in cerium-modified aluminum powders, suggesting improved processability for laser additive manufacturing.

Key Points

  • To evaluate the physicochemical properties, microstructural characteristics, and solidification kinetics of cerium-free (AA2017-0Ce) and cerium-modified (AA2017-3Ce) gas-atomized powders for laser powder bed fusion.
  • Produced gas-atomized AA2017-0Ce and AA2017-3Ce powders in the 20–63 µm particle size range.
  • Characterized solidification behavior and phase evolution via optical microscopy, scanning electron microscopy, synchrotron X-ray diffraction, and differential scanning calorimetry.
  • Evaluated powder processability through measurements of density, flowability, contact angle, Hausner ratio, and loss on drying.
  • Both alloy powders exhibited high sphericity along with the presence of fine satellites and agglomerates.
  • Cerium addition promoted microstructural refinement, establishing dendritic networks surrounded by eutectic Al, Al3CeCu, and Al8CeCu4 phases.
  • The AA2017-3Ce powder demonstrated lower moisture uptake and a favorable Hausner ratio, conferring superior flowability and powder bed fusion processability relative to AA2017-0Ce.

Cite This Study

Rojas-Arias et al. (2026) studied this question.

synapsesocial.com/papers/6aabb6d85f706d05830e589bhttps://doi.org/10.1557/s43578-026-01973-9
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