锑对亚共晶灰铁初生奥氏体二次枝晶臂间距的影响  

INFLUENCE OF ANTIMONY ON SECONDARY DENDRITE ARM SPACING OF PRIMARY AUSTENITE OF HYPOEUTECTIC GREY IRON

作　　者：吴春京[1] 朱玉龙[1] 沈定钊[1] 

机构地区：[1]北京科技大学

出　　处：《钢铁》1996年第4期56-58,共3页Iron and Steel

摘　　要：采用定向凝固方法研究了不同锑含量的亚共晶Ｆｅ－Ｃ－Ｓｉ－Ｍｎ合金初生奥氏体二次枝晶臂间距。结果发现，当Ｓｂ≤０．０３６％时，随锑含量的增加，奥氏体二次枝晶臂间距减小；当Ｓｂ＞０．０３６％后，随锑含量增加，奥氏体二次枝晶臂间距又逐渐变大。The directional solidification method was used to investigate the secondary dendrite arm spacing of primary austenite of hypoeutectic Fe-C-Si-Mn alloy with various antimony contents. It is found that secondary dendrite arm spacing of primary austenite decreases with the increase of antimony content when the antimony content is less than 0. 036%, When the antimony is larger than 0.036%, adding more antimony to alloy enlarges that spacing again.

关 键 词：锑 初生奥氏体 二次枝晶臂间距 灰口铁 

分 类 号：TG143.2[一般工业技术—材料科学与工程]