Fe-Ti ならびに Fe-V 合金における酸化物介在物の研究

概要

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Deoxidation products in Fe-Ti alloys were investigated. It was determined that inclusions formed varied their structure to liquid oxide (it's structure is spinel 2FeO・TiO_2 or ilmenite FeO・TiO_2), solid solution of Ti_3O_5 and FeO・2TiO_2 and Ti_2O_3 with an increase of the amounts of titanium added. Isothermal phase diagram of Fe-Ti-O ternary system at 1500℃ was established and the following results were obtained. 1) Pseudobrookite and anasovite can form pseudobinary system and they are able to dissolve completely each other. 2) Ti_2O_3 is able to equilibrate with the metallic phase containing titanium up to 27% and this fact agrees with the result of deoxidation products. As for deoxidation products of vanadium, it was verified that they appear as spinel FeO, V_2O_3, V_2O_3 and VO with an increase of the amounts of vanadium added. Moreover, FeO・V_2O_3 changes an amounts of wustite dissolved owing to oxygen partial pressure equilibrated.
社団法人日本鉄鋼協会の論文
1970-11-01