The need for spherical powders with enhanced flowability and tailored compositions have brought on new atomization techniques particularly suited for the lab-scale and highly competitive R&D activities. Among metal atomization techniques suitable for lab-scale development, those assisted by ultrasonic vibration are experiencing a notable diffusion at the R&D level. Gas-atomization is, however, the primary technique for producing spherical powders when larger batches are needed for production or R&D purposes. The present study analyses the characteristics of an innovative Al-Cu-Ti-Fe-Cr alloy obtained by the two powder production techniques. At first, the two atomization processes are compared in terms of yield in specific PSD ranges, a peculiarity of the AM technologies. Then, the main body of the study presents the characterization and comparison of the powders in terms of morphology and microstructure.

Innovative Al-Based Powders Through Ultrasonic Vibration And Gas Atomizing / Gobber, F. S.; Monti, C.; Turani, M.; Bambach, M.; Grande, M. A.. - (2023). (Intervento presentato al convegno Euro Powder Metallurgy 2023 Congress and Exhibition, PM 2023 tenutosi a Lisbona (PRT) nel 4/10/2023) [10.59499/EP235764662].

Innovative Al-Based Powders Through Ultrasonic Vibration And Gas Atomizing

Gobber F. S.;Grande M. A.
2023

Abstract

The need for spherical powders with enhanced flowability and tailored compositions have brought on new atomization techniques particularly suited for the lab-scale and highly competitive R&D activities. Among metal atomization techniques suitable for lab-scale development, those assisted by ultrasonic vibration are experiencing a notable diffusion at the R&D level. Gas-atomization is, however, the primary technique for producing spherical powders when larger batches are needed for production or R&D purposes. The present study analyses the characteristics of an innovative Al-Cu-Ti-Fe-Cr alloy obtained by the two powder production techniques. At first, the two atomization processes are compared in terms of yield in specific PSD ranges, a peculiarity of the AM technologies. Then, the main body of the study presents the characterization and comparison of the powders in terms of morphology and microstructure.
2023
9781899072576
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2987976