微量Sn对0.4%Si无取向硅钢组织和磁性能的影响  

Effect of Trace Sn on Microstructure and Magnetic Properties of 0.4%Si Non-Oriented Silicon Steel

作　　者：李冉[1] 秦强波 马允敏 赵奇少 钱红伟 LI Ran;QIN Qiang-bo;MA Yun-min;ZHAO Qi-shao;QIAN Hong-wei(Jiangsu Shagang Group Co.Ltd.,Zhangjiagang 215625,China;Jiangsu(Shagang)Iron and Steel Research Institute,Zhangjiagang 215625,China)

机构地区：[1]江苏沙钢集团有限公司,江苏张家港215625 [2]江苏(沙钢)钢铁研究院,江苏张家港215625

出　　处：《甘肃冶金》2022年第1期57-59,共3页Gansu Metallurgy

摘　　要：结合实际生产0.4%Si无取向硅钢,统计了不含Sn和0.025%Sn无取向硅钢的磁性能变化,利用金相显微镜、X射线衍射仪观察分析不同成分下试样的显微组织和微观织构。试验结果表明:Sn元素可以显著降低无取向硅钢的晶粒尺寸,0.025%Sn试样的平均晶粒尺寸比不含Sn减小28.4%;加入Sn元素后抑制了无取向硅钢中不利于磁性能的{111}面织构组分强度,提高了对磁性能有利的{100}面织构组分强度,0.025%Sn与不含Sn相比磁感均值从1.756 T提升至1.768 T,铁损均值从5.476 W/kg降低至5.204 W/kg,明显改善了无取向硅钢磁性能。In this paper combined with the actual production of 0.4% Si non oriented silicon steel,the magnetic properties of non oriented silicon steel without Sn and 0.025% Sn were counted.The microstructure and microtexture of samples with different compositions were observed and analyzed by metallographic microscope and X-ray diffraction.The results show that:Sn can significantly reduce the grain size of non oriented silicon steel,and the average grain size of 0.025% Sn sample is 28.4% smaller than that without Sn;the addition of Sn can inhibit the strength of {111} texture component which is not conducive to magnetic properties in non oriented silicon steel,and improve the strength of {100} texture component which is beneficial to magnetic properties,and the average magnetic induction of 0.025% Sn increases from 1.756 T to 1.768 T compared with that without Sn,the average iron loss decreases from 5.476 W/kg to 5.204 W/kg,which improves the magnetic properties of non oriented silicon steel.

关 键 词：无取向硅钢 磁性能 Sn元素 织构 

分 类 号：TG142.13[一般工业技术—材料科学与工程]