正在加载图片...
·572· 工程科学学报,第37卷,第5期 (a) 400 400 300 300 200 200 100 100 0 Fe 10m 0 2 46810 5μm 0 造量及ey 能量及eV 图8脱氧后钢中夹杂物形态.()纯铝脱氧后钢中A山2O3夹杂物形态:(b)复合脱氧剂脱氧后钢中夹杂物形态 Fig.8 Morphology of inclusions after deoxidization:(a)morphology of an Al inclusion after deoxidization by Al:(b)morphology of an inclusion after deoxidization by the complex deoxidizer 的A,0,夹杂物,也没有发现形成凹陷坑蚀的夹杂物. of aluminum on the stress-tupture properties of a Cr-Mo-V steel. ASM Trans Q,1967,60(2):176 3结论 [6]Foldyna V,Jakobova A,Riman R,et al.Effect of structural fac- (1)利用FactSage热力学软件计算得到的理论氧 tors on the creep properties of modified chromium steels.Steel Res,1991,62(10):453 化物渣系配比范围:5%~6%Mg0:12%~16% [7]Li S B,Wang Q.Thermodynamics analysis and experimental Al,03:38%~42%Ca0:36%~40%Si02.经过脱氧 study on deoxidization with alumina-magnesia alloy.Ferrolloys, 实验验证,表明该体系所具有的低熔点、低黏度和高碱 2007,38(2):23 度性质对A1脱氧产物AL,0,有很好的吸收排除效果. (李尚兵,王谦.铝镁合金脱氧热力学分析与实验研究.铁合 (2)使用复合脱氧剂炼钢脱氧,不仅可以保证钢 金,2007,38(2):23) [8]Wu X D,Liu X G.Deoxidation of AlSiBa alloys.J Iron Steel Res, 液中溶解氧的质量分数降低到10×106以下,而且钢 2008,20(1):18 中的总氧含量也显著减少,脱氧效果明显好于纯铝 (吴晓东,刘兴国.AlSiBa合金脱氧实验.钢铁研究学报, 脱氧. 2008,20(1):18) (3)相对于纯铝脱氧,使用复合脱氧剂脱氧后钢 [9]Du C W.Zhu M Y,Dong S Z,et al.Research on deoxidation in 中,0,夹杂物尺寸更小,数量更少,呈规则的球状分 steelmaking with Si-Al-Ba-Fe.Ferro-alloys,2003,34(2):7 布,说明复合脱氧剂不仅保证了1的脱氧能力,而且 (杜成武,朱苗勇,董世泽,等.硅铝钡铁合金在炼钢中的脱 有助于脱氧产物A山,03的排除,改善脱氧产物A山,0 氧研究.铁合金,2003,34(2):7) [10]Zhu L H,Zhao Q X,Gu H C,et al.A new understanding of deoxi- 的形态,提高钢的纯净度 dation by aluminum in steel.J Iron Steel Res,1999,11(4):2 (朱丽惠,赵钦新,顾海澄,等.关于钢用铝脱氧的再认识 参考文献 钢铁研究学报,1999,11(4):2) 1]Pickering F B.Non-metallic inclusions in steel.Br Corros, [11]Park J H,Lee S B,Kim D S.Inclusion control of ferritic stain- 1978,13(2):55 less steel by aluminum deoxidation and calcium treatment.Metall Huang X G.Theory of Iron and Steel Metallurgical Process.Bei- Mater Trans B,2005,36(1)67 jing:Metallurgical Industry Press,1993 [12]Shi Z Y,Wang S L.Deoxidation analysis of Al and Si-Al-Fe (黄希祜.钢铁治金过程理论.北京:治金工业出版社, Steelmaking,1991,7(1):22 1993) (史宗耀,王树林.铝脱氧和硅铝铁脱氧分析.炼钢,1991, B]Yao T L,Liu L,Li S Q,et al.Inclusions modality controlling of 7(1):22) aluminium-illed steel.Iron Steel,2010,45 (11):37 03] Holappa L,Hamalaimen M,Liukkonen M,et al.Thermodynam- (姚同路,刘浏,李树庆,等.铝镇静钢夹杂物形态控制工艺 ic examination of inclusion modification and precipitation from 研究.钢铁,2010,45(11):37) calcium treatment to solidified steel.fronmaking Steelmaking, 4]Viswanathan R,Beck C G.Effect of aluminum on the stress rup- 2003,30(2):111 ture properties of Cr-Mo-V steels.Metall Trans A,1975,6 [14]Simpson I D,Tritsmiotis Z,Moore L G.Steel cleanness require- (11):1997 ments for X65 to X80 electric resistance welded line pipe steels. [5]Brown R M,Rarliff J L.The deleterious effect of small quantities Ironmaking Steelmaking,2003,30(2):158工程科学学报,第 37 卷,第 5 期 图 8 脱氧后钢中夹杂物形态. ( a) 纯铝脱氧后钢中 Al2O3夹杂物形态; ( b) 复合脱氧剂脱氧后钢中夹杂物形态 Fig. 8 Morphology of inclusions after deoxidization: ( a) morphology of an Al2O3 inclusion after deoxidization by Al; ( b) morphology of an inclusion after deoxidization by the complex deoxidizer 的 Al2O3 夹杂物,也没有发现形成凹陷坑蚀的夹杂物. 3 结论 ( 1) 利用 FactSage 热力学软件计算得到的理论氧 化物 渣 系 配 比 范 围: 5% ~ 6% MgO; 12% ~ 16% Al2O3 ; 38% ~ 42% CaO; 36% ~ 40% SiO2 . 经过脱氧 实验验证,表明该体系所具有的低熔点、低黏度和高碱 度性质对 Al 脱氧产物 Al2O3 有很好的吸收排除效果. ( 2) 使用复合脱氧剂炼钢脱氧,不仅可以保证钢 液中溶解氧的质量分数降低到 10 × 10 - 6以下,而且钢 中的总氧含量也显著减少,脱氧效果明显好于纯铝 脱氧. ( 3) 相对于纯铝脱氧,使用复合脱氧剂脱氧后钢 中 Al2O3 夹杂物尺寸更小,数量更少,呈规则的球状分 布,说明复合脱氧剂不仅保证了 Al 的脱氧能力,而且 有助于脱氧产物 Al2O3 的排除,改善脱氧产物 Al2O3 的形态,提高钢的纯净度. 参 考 文 献 [1] Pickering F B. Non-metallic inclusions in steel. Br Corros J, 1978,13( 2) : 55 [2] Huang X G. Theory of Iron and Steel Metallurgical Process. Bei￾jing: Metallurgical Industry Press,1993 ( 黄希祜. 钢 铁 冶 金 过 程 理 论. 北 京: 冶 金 工 业 出 版 社, 1993) [3] Yao T L,Liu L,Li S Q,et al. Inclusions modality controlling of aluminium-killed steel. Iron Steel,2010,45( 11) : 37 ( 姚同路,刘浏,李树庆,等. 铝镇静钢夹杂物形态控制工艺 研究. 钢铁,2010,45( 11) : 37) [4] Viswanathan R,Beck C G. Effect of aluminum on the stress rup￾ture properties of Cr--Mo--V steels. Metall Trans A,1975,6 ( 11) : 1997 [5] Brown R M,Rarliff J L. The deleterious effect of small quantities of aluminum on the stress-rupture properties of a Cr--Mo--V steel. ASM Trans Q,1967,60( 2) : 176 [6] Foldyna V,Jakobova A,Riman R,et al. Effect of structural fac￾tors on the creep properties of modified chromium steels. Steel Res,1991,62( 10) : 453 [7] Li S B,Wang Q. Thermodynamics analysis and experimental study on deoxidization with alumina-magnesia alloy. Ferro-alloys, 2007,38( 2) : 23 ( 李尚兵,王谦. 铝镁合金脱氧热力学分析与实验研究. 铁合 金,2007,38( 2) : 23) [8] Wu X D,Liu X G. Deoxidation of AlSiBa alloys. J Iron Steel Res, 2008,20( 1) : 18 ( 吴晓东,刘兴国. AlSiBa 合金脱氧实验. 钢铁研 究 学 报, 2008,20( 1) : 18) [9] Du C W,Zhu M Y,Dong S Z,et al. Research on deoxidation in steelmaking with Si--Al--Ba--Fe. Ferro-alloys,2003,34( 2) : 7 ( 杜成武,朱苗勇,董世泽,等. 硅铝钡铁合金在炼钢中的脱 氧研究. 铁合金,2003,34( 2) : 7) [10] Zhu L H,Zhao Q X,Gu H C,et al. A new understanding of deoxi￾dation by aluminum in steel. J Iron Steel Res,1999,11( 4) : 2 ( 朱丽惠,赵钦新,顾海澄,等. 关于钢用铝脱氧的再认识. 钢铁研究学报,1999,11( 4) : 2) [11] Park J H,Lee S B,Kim D S. Inclusion control of ferritic stain￾less steel by aluminum deoxidation and calcium treatment. Metall Mater Trans B,2005,36( 1) : 67 [12] Shi Z Y,Wang S L. Deoxidation analysis of Al and Si--Al--Fe. Steelmaking,1991,7( 1) : 22 ( 史宗耀,王树林. 铝脱氧和硅铝铁脱氧分析. 炼钢,1991, 7( 1) : 22) [13] Holappa L,Hamalaimen M,Liukkonen M,et al. Thermodynam￾ic examination of inclusion modification and precipitation from calcium treatment to solidified steel. Ironmaking Steelmaking, 2003,30( 2) : 111 [14] Simpson I D,Tritsmiotis Z,Moore L G. Steel cleanness require￾ments for X65 to X80 electric resistance welded line pipe steels. Ironmaking Steelmaking,2003,30( 2) : 158 · 275 ·
<<向上翻页
©2008-现在 cucdc.com 高等教育资讯网 版权所有