Investigation of the Ti-rich Ti-Fe-Mn Alloy System (2nd Report). On the Liquidus Surface of the Ti-Fe-Mn System

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  • Ti-Fe-Mn 3元合金平衡状態図の研究（第2報）Ti-Fe-Mn 3元合金状態図の液相面について

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The liquidus surface of the Ti-Fe-Mn system was determined by melting point determination, microscopic observation and Micro-Vickers hardness measurement. Summing up the present experimental results, the liquidus surface diagram as shown in Fig. 2 was obtained. In the figure, AE1EE2 represents a field of the primary separation of Ti and those of TiMn, TiFe and Ti(Fe, Mn)2 are respectively shown by E1EPP1 E2EPP2 and BP1PP2CE3F. The Ti(Fe, Mn)2 phase is a continuous solid solution which exists in the wide range of composition between TiFe2 phase in the Ti-Fe binary system and TiMn2 phase in the Ti-Mn binary system. In this ternary system, two invariant reactions & liquid+Ti(Fe,Mn)_2 \ ightleftharpoonsTiFe+TiMn at about 1,100°, <BR> & liquid \ ightleftharpoonsTi+TiFe+TiMn at about 1,050°are considered to exist.

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