摘要
采用正交试验法，研究了微量Ｎｂ、Ｔｅ、Ｂ对铸态贝氏体球铁组织的影响。结果表明，Ｎｂ最强烈，然后依次是Ｔｅ和Ｂ；这三种微量元素的适宜加入量为０．１６％Ｎｂ、２５ｐｐｍＴｅ、２０ｐｐｍＢ。在此条件下，还分析了Ｎｉ量变化对球铁组织和性能的影响。
A study has been made for the effect of trace elements Nb, Te and B on the structure of as-cast bainitic ductile iran using the orthogonal experimental method, among them Nb has strong effect, in turn Te and B. The optimum addition levels of above elements are 0. 16%Nb, 25ppm Te and 20ppm B. In addition, the effects of adding Ni onthe microstructure and properties of ductile iron also analysed.
出处
《铸造》
CAS
CSCD
北大核心
1995年第9期5-8,共4页
Foundry
