United modification of Al-24Si alloy by Al-P and Al-Ti-C master alloys

来源期刊：中国有色金属学报(英文版)2003年第1期

论文作者：韩延峰 刘相法 王海梅 王振卿 边秀房 张均艳

文章页码：92 - 96

Key words：Al-P master alloy; Al-Si alloy; modification; TiC

Abstract: The modification effect of a new type of Al-P master alloy on Al-24Si alloys was investigated. It is found that excellent modification effect can be obtained by the addition of this new type of Al-P master alloy into Al-24Si melt and the average primary Si grain size is decreased below 47μm from original 225μm. It is also found that the TiC particles in the melt coming from Al8Ti2C can improve the modification effect of the Al-P master alloy. When the content of TiC particles in the Al-24Si melt is 0.03%, the improvement reaches the maximum and keeps steady with increasing content of TiC particles. Modification effect occurs at 50min after the addition of the Al-P master alloy and TiC particles, and keeps stable with prolonging holding time.