Microstructural variation is quantitatively characterized by measured undercooling. For near-eutectic 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.
|Number of pages||4|
|Journal||Materials Science Forum|
|Publication status||Published - 2004 Jul 27|
- Hypereutectic Al-Si
- Morphological changes of primary and eutectic Si
ASJC Scopus subject areas
- Materials Science(all)