低碳球墨铸铁的显微组织分析  

Microstructure Analysis of Low Carbon Ductile Iron

作　　者：朱延东[1] 舒信福[1] 邢泽炳[1] 李玉中[1] 李玲芳[1] 

机构地区：[1]昆明理工大学机电工程学院,云南昆明650093

出　　处：《机械工程材料》2005年第9期38-40,共3页Materials For Mechanical Engineering

基　　金：云南省自然科学基金重点资助项目(1999E0004Z)

摘　　要：用透射电镜和扫描电镜研究了经Sx变质处理的低碳球墨铸铁的显微组织,对基体和石墨进行了分析。结果表明,低碳球墨铸铁的铸态组织为石墨+珠光体,石墨是多晶体,珠光体中的铁素体和渗碳体在晶体结构上有对应关系。The microstructure of low carbon ductile iron inoculated by Sx inocula was studied. Both matrix and graphite were analyzed by TEM and SEM. The as-cast low carbon ductile iron was made up from graphite and pearlite. The graphite was polycrystal. There was orientation relationship between ferrite and cemenite in pearlite matrix.

关 键 词：低碳球墨铸铁 显微组织 变质处理 

分 类 号：TG143.5[一般工业技术—材料科学与工程]