Metals 2012, 2(2), 202-210; doi:10.3390/met2020202
Article

Gas Atomization of Aluminium Melts: Comparison of Analytical Models

School of Mining Engineering and Metallurgy, National Technical University of Athens, Zografou Campus, Athens 15780, Greece
Received: 31 March 2012; in revised form: 28 May 2012 / Accepted: 6 June 2012 / Published: 18 June 2012
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Abstract: A number of analytical models predicting the size distribution of particles during atomization of Al-based alloys by N2, He and Ar gases were compared. Simulations of liquid break up in a close coupled atomizer revealed that the finer particles are located near the center of the spray cone. Increasing gas injection pressures led to an overall reduction of particle diameters and caused a migration of the larger powder particles towards the outer boundary of the flow. At sufficiently high gas pressures the spray became monodisperse. The models also indicated that there is a minimum achievable mean diameter for any melt/gas system.
Keywords: Al alloys; gas atomization; spray forming; two phase flow; liquid break up; surface wave formation

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MDPI and ACS Style

Antipas, G. Gas Atomization of Aluminium Melts: Comparison of Analytical Models. Metals 2012, 2, 202-210.

AMA Style

Antipas G. Gas Atomization of Aluminium Melts: Comparison of Analytical Models. Metals. 2012; 2(2):202-210.

Chicago/Turabian Style

Antipas, Georgios. 2012. "Gas Atomization of Aluminium Melts: Comparison of Analytical Models." Metals 2, no. 2: 202-210.

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