Abhijith Brijesh Mohan
Gas Atomization of Copper-based powders for Additive Manufacturing.
Rel. Daniele Ugues, Federico Simone Gobber. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Dei Materiali Per L'Industria 4.0, 2025
Abstract
Copper-based alloys show an attractive combination of electrical conductivity, thermal conductivity, and mechanical properties and in specific applications can be used as tooling materials as well. The Cu-Be alloy, despite hardening upon heat treatment requires a substitute due to health-related hazards associated with its production. The Cu-Ti alloy system is considered a suitable replacement and has been a subject of research for a while now. In this work, powders of Cu-Ti (1.5 wt.% and 3 wt.% Ti) and Cu-Ti-Ni (3 wt.% Ti with 2 wt.% Ni and 5 wt.% Ni) alloys were produced via vacuum induction inert gas atomization (VIGA) —yielding high fractions of sub-250 μm powder (≈93–98 vol.%).
After determining the atomization yields in different particle size distribution ranges, the structural, chemical, morphological and rheological properties of the powder have been characterized by XRD, DSC, SEM/EDS, and shear cell rheometry
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