不同合金化工艺对18Cr超纯铁素体不锈钢精炼过程夹杂物的影响  

Effect of Different Alloying Processes on Inclusions of 18Cr Ultra-pure Ferrite Stainless Steel during Refining Proce

作　　者：张建龙 陈兴润 程云霞 李鸿亮 徐斌 潘吉祥 Zhang Jianlong;Chen Xingrun;Cheng Yunxia;Li Hongliang;Xu Bin;Pan Jixiang(Hongxing Iron&Steel Co.,Ltd.,Jiuquan Iron and Steel Group Corporation,Jiayuguan 735100)

机构地区：[1]酒泉钢铁集团宏兴钢铁股份有限公司,嘉峪关735100

出　　处：《特殊钢》2023年第3期34-38,共5页Special Steel

摘　　要：采用试验和热力学计算相结合的方法研究了不同合金化工艺对18Cr超纯铁素体不锈钢精炼过程夹杂物的影响。试验结果表明:18Cr超纯铁素体不锈钢钛合金化前的夹杂物类型为CaO-Al_(2)O_(3)-MgO,钛合金化后夹杂物类型转变为了CaO-Al_(2)O_(3)-MgO-TiOX。铌钛双稳定(Ti:0.181%,Nb:0.147%)合金化后的炉次夹杂物数量密度和夹杂物中TiOX的重量百分比都要低于钛单稳定(Ti:0.324%)的炉次。Effect of different alloying processes on inclusions of 18Cr ultra-pure ferrite stainless steel during refining process were investigated by using industrial experiments and thermodynamic calculations.The results showed that the inclusion type of 18Cr ultra-pure ferrite stainless steel before titanium alloying is CaO-Al_(2)O_(3)-MgO,and the inclusion type changes to CaO-Al_(2)O_(3)-MgO-TiOX after titanium alloying.After titanium alloying,the number density of inclusions and the weight percentage of TiOX in Nb-Ti double stable heats number(Ti:0.181%,Nb:0.147%)are lower than those in single Ti stable heats number(Ti:0.324%).

关 键 词：18Cr超纯铁素体不锈钢 精炼 夹杂物 铌钛双稳定 热力学计算 

分 类 号：TF764.1[冶金工程—钢铁冶金]