高牌号无取向硅钢硫化物、氮化物析出的热力学计算  

Thermodynamic calculation on precipitation of sulfide and nitride in high-grade non-oriented silicon steel 50W350

作　　者：冯国辉 程传良 王旭 乔家龙 时朋召 郭飞虎 刘磊 仇圣桃[2] Feng Guohui;Cheng Chuanliang;Wang Xu;Qiao Jialong;Shi Pengzhao;Guo Feihu;Liu Lei;Qiu Shengtao(Plate Business Department,Nanjing Iron and Steel Co.,Ltd.,Nanjing 210044,Jiangsu,China;National Engineering Research Center of Continuous Casting Technology,Central Iron and Steel Research In-stitute,Haidian 100083,Beijing,China)

机构地区：[1]南京钢铁股份有限公司板材事业部,江苏南京210044 [2]钢铁研究总院连铸技术国家工程研究中心,北京海淀100083

出　　处：《钢铁钒钛》2024年第6期194-200,共7页Iron Steel Vanadium Titanium

摘　　要：通过对高牌号无取向电工钢50W350硫化物、氮化物的热力学计算,获得了析出物的平衡浓度关系。液相线温度以下,AlN在1 700~1 788K温度区间析出,TiN的析出温度区间为1 588~1 788K,MnS的析出温度区间在1 768~1 788 K范围内,Cu2S的析出温度范围为1 420~1 768K,并通过实际检测,证实了各温度区间析出物的存在。Through the thermodynamic calculation of sulfide and nitride of high-grade non-oriented electrical steel 50W350,the equilibrium concentration relationship of precipitates was obtained.Above liquidus temperature,AlN,Tin,MnS and Cu2S cannot precipitate;Below the liquidus temperature,AlN is precipitated in the temperature range of 1488K~1780K,TiN is precipitated in the temperature range of 1520K~1770K,MnS is precipitated in the temperature range of 1120K~1768K,and Cu2S is precipitated below 1420K.Finally,the existence of the above precipitates was detected by experiments.The above calculation parameters can provide theoretical guidance for the rolling process.

关 键 词：无取向硅钢 液相线 固相线 硫化物 氮化物 溶度积 

分 类 号：TF76[冶金工程—钢铁冶金]