Morphological Features of Silicon Rich Phase in Powder Thixoformed Spray Atomized Hyper-Eutectic Al-Si Alloy

Abstract:

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Microstructural evolution of the spray atomized and powder thixoformed hyper-eutectic A390 aluminum alloy was investigated. The spray atomized powder revealed homogeneous and very fine silicon particles distribution, due to the rapid solidification of the alloy. The semi-solid powders were extruded into a closed die cavity through a hole for the plastic deformation of the powder particles. A drop forge of 45kg weight at different heights was used in this investigation. Remarkable rearrangement and growth of the silicon rich phase was revealed in the final stage.

Info:

Periodical:

Solid State Phenomena (Volumes 141-143)

Edited by:

G. Hirt, A. Rassili, A. Bührig-Polaczek

Pages:

493-498

DOI:

10.4028/www.scientific.net/SSP.141-143.493

Citation:

M. Kiani et al., "Morphological Features of Silicon Rich Phase in Powder Thixoformed Spray Atomized Hyper-Eutectic Al-Si Alloy", Solid State Phenomena, Vols. 141-143, pp. 493-498, 2008

Online since:

July 2008

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Price:

$35.00

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