稀土La对ZL101合金的变质研究  

Modification Research of Rare Earth La in ZL101 Alloy

作　　者：胥锴[1] 刘萍[2] 

机构地区：[1]安徽机电职业技术学院机械工程系,安徽芜湖241000 [2]上海交通大学材料科学与工程学院,上海200030

出　　处：《热加工工艺》2008年第1期12-14,共3页Hot Working Technology

摘　　要：采用光学金相研究分析手段,研究了稀土La对ZL101合金的变质效果和变质机理。实验发现,加入A1-La,ZL101合金可获得理想的变质和细化效果,共晶Si呈短纤维状,α-Al晶粒变得细小。最后探讨了变质机理。Using optics metallography mothods, the modification effects and mechanisms of rare earth La in ZL101 alloy were investigated. The results show that Al-La master alloy has good modifing and refining effects on ZL101 alloy. The eutectic silicon is fibrilliform. The α-Al size is refined. In the end, the modification mechanism of eutectic silicon is discussed.

关 键 词：ZL101合金 稀土 变质机理 

分 类 号：TG243.2[金属学及工艺—铸造]