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Numerical model of electrode induction melting for gas atomization

Bojarevics, V., Roy, A. and Pericleous, K. (2011) Numerical model of electrode induction melting for gas atomization. COMPEL, 30 (5). pp. 1455-1466. ISSN 30, No 5, 1455-1466

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Abstract

Purpose – The purpose of this paper is to create a numerical model of electrode induction melting process for the gas atomization (EIGA) and process and investigate the complex interaction of the electromagnetic and thermal fields on the fluid flow with free surface.

Design/methodology/approach – The modelling approach is based on the free surface code
SPHINX which includes time dependent electromagnetic, thermal and fluid flow with free surface modelling and the commercial software COMSOL for investigating 3D electromagnetic effects.

Findings – The melting dynamics, liquid film formation and the outflow free surface behavior are predicted by SPHINX using an optimized geometry. Quasi-stationary AC electromagnetic solutions with COMSOL predict some 3D effects of the coil, including frequency dependent estimates of voltage, electric current and power.

Originality/value – The importance of magnetic forces controlling the free surface jet formation, partial semi-levitation and the outflow superheat is uncovered by numerical modelling tools. An optimized geometry is presented for the EIGA process.

Item Type:Article
Creator/Authors:
Valdis Bojarevics
Alan Roy
Koulis Pericleous
Keywords:Induction melting, Magnetohydrodynamics, Free surface dynamics, AC electrodynamics, titanium powder production
Research Group:Current ECS Groups > Electronics and Electrical Engineerineering
Old ECS Groups > Electrical Power Engineering
ISSN:30, No 5, 1455-1466
Date:2011
Information about this record:
Citations:
ID Code:22898
Last Modified:03 Oct 2011 10:29
Deposited On:30 Sep 2011 11:24 by Roy, Alan

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References in Article

Select the SEEK icon to attempt to find the referenced article. If it does not appear to be in this archive you will be forwarded to the paracite service. Poorly formated references will probably not work.

Antony, L.V.M. and Reddy, R.G. (2003), “Processes for production of high-purity metal powders”, J. of Metals, Vol. 55 No. 3, pp. 14-18.

Belyanchikov, L.N. (2008), “Special electrometallurgy of promising structural materials based on titanium aluminides”, Russian Metallurgy (metally), Vol. 2008 No. 3, pp. 9-22.

Bojarevics, V., Pericleous, K. and Cross, M. 2000), “Modelling the dynamics of magnetic

semi-levitation melting”, Metallurgical and Materials Transactions B, Vol. 31, pp. 179-89.

Bojarevics, V., Harding, R.A., Pericleous, K. and Wickins, M. (2004), “The development and validation of a numerical model of an induction skull melting furnace”, Metallurgical and Materials Transactions B, Vol. 35, pp. 785-803.

Dinda, G.P., Song, L. and Mazumder, J. (2008), “Fabrication of Ti-6Al-4V scaffolds by direct metal deposition”, Metallurgical and Materials Transactions A, Vol. 39, pp. 2914-22.

Franz, H., Plochl, L. and Schimansky, F.-P. (2008), “Recent advances of titanium alloy powder production by ceramic-free inert gas atomization”, Proc. Titanium 2008, International Titanium Association, Las Vegas, NV, USA.

Gerling, R., Schimansky, F.P., Wegmann, G. and Zhang, J.X. (2002), “Spray forming of Ti48.9Al and subsequent hot isostatic pressing and forging”, Materials Sci. Eng.,

Vol. A326, pp. 73-8.

Shimasaki, S., Imanishi, K., Taniguchi, S. and Bojarevics, V. (2009), “Manufacturing of uniformly sized silicon particles for solar cell from molten metal jet by electromagnetic pinch force”, Proc. 6th Int. Symp. Electromagn. Processing Materials, ISIJ, Dresden, Germany,

pp. 899-902.

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