Fabrication and Characteristics of Hypereutectic Prealloyed Al-Si Powders by Gas Atomization Process

Abstract:

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The hypereutectic prealloyed Al-Si powders were prepared by gas atomization process. The microstructure and compacting ability of the atomized Al-Si powders were investigated. With increasing the gas pressure of the atomization, the average powder size and oxygen content were decreased. The size of primary eutectic Si particles in the as-atomized powders was about 8~10. As-atomized powders were hot-pressed into a cylindrical shape. Relative density of the hot-pressed samples was achieved about 96~99 % of theoretical density. Some properties of the samples were evaluated in this paper.

Info:

Periodical:

Key Engineering Materials (Volumes 317-318)

Edited by:

T. Ohji, T. Sekino and K. Niihara

Pages:

61-64

DOI:

10.4028/www.scientific.net/KEM.317-318.61

Citation:

Y. J. Kim et al., "Fabrication and Characteristics of Hypereutectic Prealloyed Al-Si Powders by Gas Atomization Process", Key Engineering Materials, Vols. 317-318, pp. 61-64, 2006

Online since:

August 2006

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Price:

$35.00

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