稀土在钢中的应用  

Application of Rare earth in Steels

作　　者：李艳芳[1] 

机构地区：[1]太原理工大学,山西太原030024

出　　处：《铸造设备研究》2001年第1期42-44,共3页Research Studies On Foundry Equipment

摘　　要：稀土能与钢液中的氧、硫产生极强的结合、与磷、砷、锑、铋、铅、铜等低熔点杂质发生交互作用 ,同时能改善夹杂物的形态和大小 ,细化晶粒 ,均匀分布。Rare earths play important role in alloying of steels. It can strongly combine with oxygen and sulfur in the melt and interact with some imparties with low melting point ,such as, phosphorus, arsenic, antimony, bismuth, lead, copper and so on. Alos, it can improve the shape and size of impurities, refine grain and make the distribution of phase in alloy.

关 键 词：稀土 变质 疲劳性能 钢 钢液净化 硫化物 晶粒细化 

分 类 号：TG146.45[一般工业技术—材料科学与工程]