Effects of boron on eutectic solidification in hypoeutectic Al-Si alloys

被引:23
作者
Geng, HY [1 ]
Li, YX [1 ]
Xiang, C [1 ]
Xue, W [1 ]
机构
[1] Tsing Hua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
关键词
aluminium alloys; grain refining; modification; image analysis;
D O I
10.1016/j.scriptamat.2005.03.011
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effects of boron on the solidified microstructure and cooling curve of Al-7Si alloy were investigated. The results show that B has no significant effects on the shape factor of eutectic silicon but the mean area of eutectic silicon phase is reduced when the grain size is reduced within a certain range. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:69 / 73
页数:5
相关论文
共 8 条
[1]  
BERCOVICI S, 1978, 45 INT FOUNDR C BUD, P8
[2]  
HEUSLER L, 1997, AFS T, V915, P921
[3]   Development of an efficient grain refiner for Al-7Si alloy and its modification with strontium [J].
Kori, SA ;
Murty, BS ;
Chakraborty, M .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 283 (1-2) :94-104
[4]   Effects of boron on eutectic modification of hypoeutectic Al-Si alloys [J].
Nogita, K ;
Dahle, AK .
SCRIPTA MATERIALIA, 2003, 48 (03) :307-313
[5]  
Sigworth G.K., 1985, AFS T, V172, P907
[6]  
TONDEL PA, 1993, LIGHT MET, V783, P790
[7]  
WANG L, 1999, ACTA METALL SIN, V12, P611
[8]   Grain refinement of Al-7Si alloys and the efficiency assessment by recognition of cooling curves [J].
Wang, Q ;
Li, YX ;
Li, XC .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (05) :1175-1182