Al-Si共晶合金的化学变质剂的概述  

Summary on Chemical Modifier of Eutectic Al-Si Alloy

作　　者：姜科[1] 孙圣洁[2] 

机构地区：[1]江西理工大学材料与化学学院,赣州341000 [2]沈阳飞机工业集团动力处热力室,沈阳110034

出　　处：《铝加工》2009年第4期7-10,共4页Aluminium Fabrication

摘　　要：介绍了Al-Si共晶合金在生产中的的重要作用,并指出了Al-Si合金变质的原因及意义;研究了各个变质剂在变质处理中的优点和其缺点,分析了变质效果。结果表明:Sr的变质效果比较好,但仍有空洞,故可以采用钠和Sr或者钠、Sr以及稀土复合的变质剂进行变质。The important role of eutectic Al-Si alloy in practical production were introduced in the paper, and the causes and significance of Al-Si alloy modification were pointed out. The advantages and its disadvantages of the modifiers and modification effect were studied. The results show that modification effect of Sr is better, but there is still empty hole. Mixed with Sr, Na and Sr, Na, RE can be used for modification of Al-Si alloy.

关 键 词：Al—Si共晶合金 变质处理 变质剂 

分 类 号：TG113[金属学及工艺—物理冶金]