铸坯加热温度和Mo对高磁感取向硅钢第二相析出形态的影响  

Influence of Slab Heating Temperature and Mo on Precipitation Morphology of Second Phase in High-Induction Grain-Oriented Silicon Steels

作　　者：蒙肇斌[1] 赵宇[1] 何忠治 裴大荣[1] 毛炯辉 王良芳 何礼君 

机构地区：[1]冶金部钢铁研究总院,武汉钢铁(集团)公司

出　　处：《钢铁研究学报》1996年第6期19-23,共5页Journal of Iron and Steel Research

摘　　要：采用透射电镜观察了铸坯加热温度和Ｍｏ对高磁感取向硅钢（Ｈｉ－Ｂ钢）析出第二相质点（硫化物＋ＡｌＮ）的影响。证实上述两个因素对ＡｌＮ析出形态有很大影响，而对硫化物析出形态影响较小。铸坯加热温度降低和加钼使ＡｌＮ析出更加细小、弥散。因此，含钼Ｈｉ－Ｂ钢的铸坯采用较低温度（１３１０℃）加热，对于提高第二相质点抑制初次晶粒长大的能力是有利的。TEM observations were made of the influences of slab heating temperature and Mo on precipitated second phase particles(sulfide and AlN) in high induction grain-oriented silicon steels (Hi-B).It was proved that the two factors mentioned above had great influences on precipitation morphology of AlN but small influences on that of sulfide.Both of lowering the slab heating temperature and adding Mo resulted in a smaller size and more dispersive distribution of AlN particles.Therefore, It is beneficial for slab heated at a lower temperature(1310℃)and added by a small amount of Mo to improve the second phase particles ability of inhibiting primary recrystallized grain's growth in Hi-B steels.

关 键 词：高磁感取向硅钢 温度 钼 抑制剂 硅钢 析出相 

分 类 号：TG142.2[一般工业技术—材料科学与工程]