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金属学报  1985, Vol. 21 Issue (3): 75-82    
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Ni液中Y-S-O平衡的研究
王龙妹;杜挺
冶金工业部钢铁研究总院;冶金工业部钢铁研究总院
EQUILIBRIUM OF Y-S-O IN LIQUID Ni
WANG Longmei;DU Ting Central Iron and Steel Research Institute;Ministry of Metallurgical Industry;Beijing
引用本文:

王龙妹;杜挺. Ni液中Y-S-O平衡的研究[J]. 金属学报, 1985, 21(3): 75-82.
, . EQUILIBRIUM OF Y-S-O IN LIQUID Ni[J]. Acta Metall Sin, 1985, 21(3): 75-82.

全文: PDF(580 KB)  
摘要: 由低温无水电解稀土夹杂物和固体电解质定氧活度测得Ni液中钇的脱硫氧常数与温度的关系:lgKr_2o_2s=-(33146)/T+3.85,(1500-1600℃)钇的硫氧化物在Ni液中的标准生成自由能与温度的关系:2[Y]+2[O]+[S]=Y_2O_2S_(s),(1500—1600℃)△G°=151640+17.61T(cal/mol)=-634460+73.69T(J/mol)由实验测得数据经热力学分析计算得到1600℃Ni液中[Y]-[S]-[O]平衡立体图及α_o-α_s平衡相图,为理论上预测夹杂物生成的先后次序及类型提供了依据.并给出了Ni液中加钇控制夹杂物形态公式,钇的加入量与氧,硫含量之间的函数关系.
Abstract:The deoxysulphurization constant of Y and Y oxysulphide standard free energyof formation vs temperature have been determined in liquid Ni.(?)(?)After calculation by thermodynamic analysis,it was resulted that the equilibriumspace diagram for[Y]-[S]-[O]system and a_O-a_S equilibrium phase diagram in liquidNi are presented.Thus,the subsequence and type of the inclusion formation maybe predicted by them.And the formula controlling the morphology of inclusionformed in liquid Ni by Y addition,as well as the relationship between the Y ad-dition and the content of O_2 and S are also given.
收稿日期: 1985-03-18     
基金资助:中国科学院科学基金
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