DETERMINATION OF ISOTHERMAL SECTION OF FE-NI-ZR TERNARY SYSTEM AT 1198K
来源期刊：Acta Metallurgica Sinica2007年第6期
论文作者：H.S. Liu Z.P. Jin S. Jin L.B. Liu G.J. Zhou
Key words：Fe-Ni-Zr; diffusion triple; isothermal section; phase diagram;
Abstract: The isothermal section of Fe-Ni-Zr ternary system at 1198K was experimentally determinedusing diffusion triple technique together with scanning electron microscopy (SEM) and electronprobe microanalysis (EPMA). The results indicate that there are seven binary intermetallic phases,Fe2Zr, FeZr2, NiZr2, NiZr, Ni10Zr7, Ni7Zr2, and Ni5Zr, found in the ternary system, the binarycompounds NiZr2 and FeZr2 show a homogeneity range and form a continuous solid solution,namely (Fe, Ni)Zr2- Five three-phase sections, γ(Fe, Ni) + Ni7Zr2 + Ni5Zr, γ(Fe, Ni) + Ni7Zr2 +Ni10Zr7, γ(Fe, Ni) + Fe2Zr + Ni10Zr7, (Fe, Ni)Zr2 + Fe2Zr + Ni10Zr7, and (Fe, Ni)Zr2 + NiZr + Ni10Zr7,exist in the isothermal section. No ternary compound is observed.
H.S. Liu1，Z.P. Jin1，S. Jin1，L.B. Liu1，G.J. Zhou1
(1.School of Materials Science and Engineering, Central-South University,Changsha 410083, China)
Abstract:The isothermal section of Fe-Ni-Zr ternary system at 1198K was experimentally determinedusing diffusion triple technique together with scanning electron microscopy (SEM) and electronprobe microanalysis (EPMA). The results indicate that there are seven binary intermetallic phases,Fe2Zr, FeZr2, NiZr2, NiZr, Ni10Zr7, Ni7Zr2, and Ni5Zr, found in the ternary system, the binarycompounds NiZr2 and FeZr2 show a homogeneity range and form a continuous solid solution,namely (Fe, Ni)Zr2- Five three-phase sections, γ(Fe, Ni) + Ni7Zr2 + Ni5Zr, γ(Fe, Ni) + Ni7Zr2 +Ni10Zr7, γ(Fe, Ni) + Fe2Zr + Ni10Zr7, (Fe, Ni)Zr2 + Fe2Zr + Ni10Zr7, and (Fe, Ni)Zr2 + NiZr + Ni10Zr7,exist in the isothermal section. No ternary compound is observed.
Key words:Fe-Ni-Zr; diffusion triple; isothermal section; phase diagram;
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