Microstructure Characterizations of Hypereutectic Al-Si Alloys with Different Undercooling Levels

Abstract:

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Microstructural variation is quantitatively characterized by measured undercooling. For neareutectic Al-13wt%Si alloys, microstructure transitions, which include a phase change from eutectic to primary α-Al dendrite plus eutectic and a morphological change from α-Al dendrite to equiaxed Al grains, were observed with increasing undercooling levels. For hypereutectic Al-Si alloys, microstructure transitions, which include a morphological change of primary and eutectic Si crystals, were also obtained quantitatively by increasing undercooling.

Info:

Periodical:

Materials Science Forum (Volumes 449-452)

Edited by:

S.-G. Kang and T. Kobayashi

Pages:

169-172

DOI:

10.4028/www.scientific.net/MSF.449-452.169

Citation:

H.S. Kang et al., "Microstructure Characterizations of Hypereutectic Al-Si Alloys with Different Undercooling Levels", Materials Science Forum, Vols. 449-452, pp. 169-172, 2004

Online since:

March 2004

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Price:

$35.00

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