Microstructure characterizations of hypereutectic Al-Si alloys with different undercooling levels

被引:1
|
作者
Kang, HS
Yoon, WY
Kim, KH
Kim, MH
Yoon, EP
机构
[1] Korea Univ, Div Mat Sci & Engn, Seoul 136701, South Korea
[2] Korea Univ, Dept Mech Engn, Seoul 136701, South Korea
[3] Inha Univ, Sch Mat Sci & Engn, Inchon 402751, South Korea
[4] Hanyang Univ, Div Mat Sci & Engn, Seoul 133791, South Korea
来源
DESIGNING, PROCESSING AND PROPERTIES OF ADVANCED ENGINEERING MATERIALS, PTS 1 AND 2 | 2004年 / 449-4卷
关键词
hypereutectic Al-Si; undercooling; morphological changes of primary and eutectic Si;
D O I
10.4028/www.scientific.net/MSF.449-452.169
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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 alphaAl dendrite plus eutectic and a morphological change from alpha-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.
引用
收藏
页码:169 / 172
页数:4
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