喂钡镁锆钙复合包芯线对钢中夹杂物及性能影响  

Effect of Feeding MgZrCaBa Composite Wire on Inclusion Modification and Mechanical Properties in Steel

作　　者：付勇涛[1,2] 刘静[1] 王玉涛[2] 刘武群[2] 陈玮[2] 严翔[1,2] 

机构地区：[1]武汉科技大学,湖北武汉430081 [2]武汉钢铁(集团)公司研究院,湖北武汉430080

出　　处：《物理测试》2009年第6期13-16,28,共5页Physics Examination and Testing

摘　　要：在RH真空处理后喂入钡镁锆钙复合包芯线对28Cr2Mo钢进行了夹杂物变性处理,发现夹杂物由片层状MnS夹杂变为颗粒状含有Ca、Mg、Zr的复合硫化物夹杂,夹杂物尺寸减小,分布形态由原长链状分布变为弥散分布。钢板横向冲击韧性大大提高,各向异性得到较大改善。The MgZrCaBa Composite wire was fed into 28Cr2Mo steel after RH treatment in order to find out its effect on inclusion modification and mechanical properties. The experimental results show that styles of inclusions were modified from MnS to complex inclusions including Ca,Mg,Zr, its sizes were small, and its appearances are changed from a long stripe shape to a dispersed shape. The impact toughness in traverse direction was increased greatly, and the anisotropy was improved.

关 键 词：钡镁锆钙复合包芯 夹杂 变性处理 各向异性 冲击韧性 

分 类 号：TF703.8[冶金工程—钢铁冶金]