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Search Publications by: Julio Cesar Pereira Dos Santos (IntlAssoc)

Displaying 1 - 2 of 2

Applying the Effective Bond Energy Formalism (EBEF) to Describe the Sigma (s) Phase in the Co-Cr-Ni-Re System

December 30, 2023

Author(s)

Julio Cesar Pereira Dos Santos, Sean Griesemer, Nathalie Dupin, Ursula R. Kattner, Chuan Liu, Daniela Ivanova, Thomas Hammerschmidt, Suzana Fries, Chris Wolverton, Carelyn E. Campbell

Proper descriptions of Topologically Closed-Packed (TCP) phases in thermodynamic databases are essential to adequately design new alloys. Thus, the recently introduced Effective Bond Energy Formalism (EBEF) is used in this work to describe the sigma (σ)

Microstructure and Properties of Co-Ni-Al-W Gamma/Gamma Prime Superalloy Fabricated via Laser Fusion of Elemental Powders

August 8, 2023

Author(s)

Hyeji Im, Julio Cesar Pereira Dos Santos, Carelyn E. Campbell, David Dunand

Ball-milled elemental Co, Ni, Al, and W powders were used to fabricate a Co-0.20Ni-0.11Al-0.08W (mole fraction) alloy via laser powder bed fusion (L-PBF). In the as-fused state, microstructural features present within the FCC-γ Co-Ni-Al-W matrix –