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Volume 11 Issue 6
Nov.  2021
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Article Contents
Chen Weiqing, Zhou Rongzhang, Lin Zongcai. Equilibrium between Slag and Molten Iron in the Direct Alloying of Steel with Nb2O5-Bearing Slag[J]. Chinese Journal of Engineering, 1989, 11(6): 526-532. doi: 10.13374/j.issn1001-053x.1989.06.023
Citation: Chen Weiqing, Zhou Rongzhang, Lin Zongcai. Equilibrium between Slag and Molten Iron in the Direct Alloying of Steel with Nb2O5-Bearing Slag[J]. Chinese Journal of Engineering, 1989, 11(6): 526-532. doi: 10.13374/j.issn1001-053x.1989.06.023

Equilibrium between Slag and Molten Iron in the Direct Alloying of Steel with Nb2O5-Bearing Slag

doi: 10.13374/j.issn1001-053x.1989.06.023
  • Received Date: 1989-04-11
    Available Online: 2021-11-15
  • Equilibrium between slag and molten iron at 1600℃ was investigated for the direct alloying of steel with Nb2O6-bearing slag. The activity of niobium oxide in the slag was measured. The αNb2O5 is in the range of 10-2-10-4. TheδNb2O5 is ranged in 100-10-2.Niobium partition decreases with the increase of[Si]% and CaO/SiO2. When α[0] and ΣFeO decrease, niobium partition decreases too. The δNb2o5 and the ratio of γsiO2 to γNb2O5 decrease with the incre-ase of slag basicity. The suitable thermodynamic conditions in direct alloying of steel with Nb2O5-bearing slag have been found.

     

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