<報文>溶鋼のチタン脱酸に関する研究

概要

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The interrelations among titanium, oxygen in liquid iron and deoxidation products were studied in the temperature range from 1,600° to 1,700℃. The following results were obtained : 1) The activity coefficient of oxygen is strongly deminished by titanium and expressed by log f^<(Ti)>_O=-0.158[%Ti]. 2) Primary deoxidation products were considered to be altered corresponding to the titanium contents in liquid iron, such as Ti_2O_3 (0.5<[%Ti]<5.0) and TiO (5.0<[%Ti]). But in the lower titanium content range, the deoxidation products identified by X-ray diffraction results did not coincide with that which could be expected from the equilibrium relations between titanium and oxygen. 3) Deoxidation equilibrium constant for the assumed deoxidation product, TiO_2 (s) was as follows : log K'_2=-30,900/T+10.0 (0.03<[%Ti]<0.5).
東北大学の論文
1968-03-20