Determination of isothermal section of Fe-Ti-Zr ternary system at 1173 K

• Published in: Transactions of Nonferrous Metals Society of China Vol. 17; no. 5; pp. 963 - 966
• Main Author: 周果君 金姗 刘立斌 刘华山 金展鹏
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.10.2007
• Subjects: diffusion triple; Fe-Ti-Zr; Fe-Ti-Zr三元体系; isothermal section; phase diagram; 微量分析; 相位图表; 等温线; isothermal section; phase diagram; Fe-Ti-Zr; diffusion triple
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(07)60208-8

Phase relations in the Fe-Ti-Zr ternary system at 1173 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.