不同变质方式下的铝硅共晶合金组织与性能的比较  

Comparison on the Structures and Properties of Al-Si Eutectic Alloy forthe Different Modification Modes

作　　者：陈翌庆[1] 王建民[1] 张勤贤[1] 崔明胜 

机构地区：[1]合肥工业大学

出　　处：《热加工工艺》1995年第3期35-36,共2页Hot Working Technology

摘　　要：对ＡＩ－Ｓｉ共晶合金在快冷变质和混合稀土变质方式下所获得的共晶硅形态及其与合金强度之间的关系进行了研究，指出共晶硅纤维长径比（ｌ／ｄ）是影响ＡＩ－Ｓｉ共晶合金强度的一个重要因素．Through the study on the structures and properties of the Al-Si eutectic alloy modified with RE andby rapid cooling,it bas been found out that there is a difference between the eutectic silicon morphologys obtainedthrough the two modification conditions. The relationship between eutectic silicon morphology and alloy strength hasbeen explored. It has been pointed out that the ratio of length to diameter for eutectic silicon fiber has a great influenceupon the strength of Al-Si eutectic alloy.

关 键 词：强度 铝硅合金 铸造 变质 

分 类 号：TG292[金属学及工艺—铸造]