Determination of isothermal section ofFe-Ti-Zr ternary system at 1 173 K

来源期刊：中国有色金属学报(英文版)2007年第5期

论文作者：周果君 金姗 刘立斌 刘华山 金展鹏

文章页码：963 - 963

Key words：Fe-Ti-Zr; diffusion triple; isothermal section; phase diagram

Abstract: Phase relations in the Fe-Ti-Zr ternary system at 1 173 K were investigated by means of diffusion-triple approach together with electron probe microanalysis(EPMA) technique. A series of tie lines and tie-triangles were determined and the isothermal section at 1 173 K was established, which consists of four three-phase fields: β(Ti, Zr)+FeZr₂+FeTi, FeZr₂+FeTi+Fe₂Zr, FeTi +Fe₂Zr +Fe₂Ti and Fe₂Zr +Fe₂Ti +Fe. The results show that the largest solubility of Ti in Fe₂Zr is about 11.3%(mole fraction) and the solid solubility of Ti in FeZr₂ is about 26.9%, the solid solubility of Zr in Fe₂Ti is about 8.1% and the solid solubility of Zr in FeTi is 7.2%. The binary compound FeZr₂ is nearly a linear compound. No ternary compound is found.