溶鉄中のチタン脱酸

概要

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The interrelations among titanium, oxygen in liquid iron and deoxidation products at 1550°, 1600° and 1650℃ were studied. In this experiment, two effective techniques were developed. One is the use of a thermocouple protected from high frequency interference by an Mo tube inserted for the automatic temperature control and measurement. The other is the application of the Peeling method for the sampling of the deoxidation products for identification. The following results were obtained. (1) Primary deoxidation products : Corresponding the contents of titanium in liquid iron, a few kinds of the primary deoxidation products were identified as follows. Ti_3O_5 (anosovite) : 0.001<[%Ti]<0.2 Ti_2O_3 (α-Al_2O_3 type) : 0.2<[%Ti]<2 At higher titanium contents TiO seems to be produced. (2) Deoxidation equilibrium constant : In the range of 0.001 to 0.1% Ti and at 1550° to 1650℃, the reaction was as follows. Ti_3O_5(s)=3<Ti>___-+5O___- log K'=-(41, 470)/T+3.40
社団法人日本鉄鋼協会の論文
1966-06-01