金属学报  1985, Vol. 21 Issue (2): 73-80

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Fe-Nb-O系平衡及其热力学参数的研究

古隆建;唐仲和

冶金工业部钢铁研究总院;攀枝花钢铁公司;冶金工业部钢铁研究总院

A STUDY ON Fe-Nb-O EQUILIBRIA AND THEIR THERMODYNAMIC PARAMETERS

GU Longjian;TANG Zhonghe Cetral Iron and Steel Research Institute;Ministry of Metallurgical Industry;Beijing

古隆建;唐仲和. Fe-Nb-O系平衡及其热力学参数的研究[J]. 金属学报, 1985, 21(2): 73-80.
, . A STUDY ON Fe-Nb-O EQUILIBRIA AND THEIR THERMODYNAMIC PARAMETERS[J]. Acta Metall Sin, 1985, 21(2): 73-80.

摘要 参考文献 相关文章 Metrics 全文: PDF(521 KB)   摘要: 用ZrO_2(MgO)固体电解质氧浓差电池测定了1833,1873,1913K时,Fe-Nb(0.004—3.80 wt-%)-O熔体平衡时的氧活度,用X射线衍射相分析方法对铁液中Nb的脱氧产物进行了检验,计算出1833—1913K温度范围内的Nb-O平衡常数和其它有关热力学参数.实验结果表明当铁液中Nb含量高于0.20wt-%,Nb的脱氧产物是具有金红石结构的正方型NbO_2;在0.05—0.20wt-%的Nb含量范围内,脱氧产物是Nb_2O_5;当铁液中Nb含量低于0.05wt-%时,脱氧产物是FeNb_2O_6.随着铁液中Nb含量降低(即氧活度增大),Nb的脱氧产物形态发生转变,其顺序是:NbO_2→Nb_2O_5→FeNb_2O_6. Abstract：Equilibrium oxygen activities in Fe-Nb-O melts containing 0.004 to 3.80wt-% Nb were determined by oxygen concentration cell with solid electrolyte ZrO_2(MgO)at 1833,1873 and 1913 K.The deoxidation products were identified byX-ray diffraction analysis to be tetragonal NbO_2 with a rutile structure whenNb>0.20 wt-%,to be Nb_2O_5 when Nb content being in the range of 0.05 to0.20 wt-% and to be FeNb_2O_6 when Nb<0.05 wt-%.With decreasing Nb content,i.e.with increasing oxygen activity,the form of the deoxidation products changesin the following order:NbO_2→Nb_2O_5→FeNb_2O_6With the experimental data the Nb-O equilibrium constants and other relatedthermodynamic parameters in the range of 1833 to 1913 K were calculated. 收稿日期: 1985-02-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 古隆建 唐仲和 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1985/V21/I2/73 1 邵象华,钢铁,17(1982) ,№2,23． 2 Elle,M.;Chipman,J.,Trans.Metall.Soc.AIME.,221(1961) ,701． 3 成田贵一,小山伸二,铁(?)钢,52(1966) ,786． 4 Narita,K.;Koyama,S.,Trans.Iron Steel Inst.Jpn.,9(1969) ,53． 5 佐藤雄孝;大森康男;三本木贡治;铃木健一郎,铁(?)钢,54(1968) ,330． 6 Fischer,W.A.;Janke,D.,Arch.Eisenhuettenwes.,42(1971) ,695． 7 #12 8 Buzek,Z.;Macoszek,M.;Szlauer,J.,Hutn.Listy,27(1972) ,549． 9 唐仲和;朱果灵;单玲珍;谢效方;陈永定,钢铁研究总院学报,3(1983) ,№1,9． 10 魏寿昆;张圣弼;佟亭,中国金属学会第四届全国冶金过程物理化学学术年会论文,鞍山,1982． 11 Elliott,J.F.;Gleiser,M.;Ramakrishna,V.,Thermochemistry for Steelmaking,Vol.2,Addison-Wesley Pub.,1963,p.620． 12 Elliott,J.F.,Electric Furnace Conf.Proc.,32(1974) ,73． 13 Janke,D.;Fischer,W.A.,Arch.Eisenuettenwes.,46(1975) ,755． 14 林昭二;鹈野达二,铁(?)钢,68(1982) ,1728． 15 魏寿昆,冶金过程热力学,上海科学技术出版社,(1980) ,289． 16 #1 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed