Alloy design for additive manufacturing: Continuously reinforced Al-Ce nanocomposites

Alfred Amon; Glenn E. Bean; J.-B. Forien; Thomas Voisin; Joshua A. Hammons; Emily E. Moore; Emrah Simsek; Jibril Shittu; Katherine S. Shanks; Kelly E. Nygren; Aurélien Perron; Ryan Ott; Scott K. McCall; Hunter B. Henderson

Materials & Design (Feb 2025)

Alloy design for additive manufacturing: Continuously reinforced Al-Ce nanocomposites

Alfred Amon,
Glenn E. Bean,
J.-B. Forien,
Thomas Voisin,
Joshua A. Hammons,
Emily E. Moore,
Emrah Simsek,
Jibril Shittu,
Katherine S. Shanks,
Kelly E. Nygren,
Aurélien Perron,
Ryan Ott,
Scott K. McCall,
Hunter B. Henderson

Affiliations

Alfred Amon: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA; Corresponding author.
Glenn E. Bean: The Aerospace Corporation, 2310 E El Segundo Blvd, El Segundo, CA 90245, USA
J.-B. Forien: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA
Thomas Voisin: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA
Joshua A. Hammons: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA
Emily E. Moore: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA
Emrah Simsek: Ames National Laboratory, 2415 Pammel Dr, Ames, IA 50011, USA
Jibril Shittu: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA
Katherine S. Shanks: Cornell High Energy Synchrotron Source, 161 Synchrotron Dr, Ithaca, NY 14853, USA
Kelly E. Nygren: Cornell High Energy Synchrotron Source, 161 Synchrotron Dr, Ithaca, NY 14853, USA
Aurélien Perron: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA
Ryan Ott: Ames National Laboratory, 2415 Pammel Dr, Ames, IA 50011, USA
Scott K. McCall: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA
Hunter B. Henderson: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA

Journal volume & issue: Vol. 250
p. 113595

Abstract

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The composition Al-16Ce-1Mg has been developed as a dedicated alloy for processing by laser powder bed fusion (LPBF). Guided by thermodynamic considerations and exploiting the unique conditions during LPBF, the strongly hypereutectic alloy features nm-scale aluminum dendrites reinforced by a continuous intermetallic network. The unique temperature stability of Al-Ce alloys as well as the microstructure topology and scale grant the alloy high strength in as-printed state with excellent thermal stability. The superior mechanical properties of the continuously reinforced nanocomposite were established by comparison with the spheroidized, microstructure of similar scale.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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