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Determination of phase equilibria in the Ni-Ta-Zr system at 1223 K

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Rare Metals 2003年第3期22卷 160-163页

作者： PAN Ximiao and JIN ZhanpengPhase Diagram and Materials Design Center, School of Materials Science and Engineering, Central South University, Changsha 410083, China Phase Diagram and Materials Design Center School of Materials Science and Engineering Central South University Changsha 410083

The phase equilibrium relations of the ternary Ni-Ta-Zr system at 1223 K wereinvestigated by means of diffusion triple and electron probe microanalysis (EPMA) techniques. Twoternary compounds were found and a series of tie lines and tie triangles have been determined. Themaximum solubility of Ta in NiZr_2 is about 13.5% (atom fraction). The corresponding tentativeisothermal section at this temperature was constructed based on current experimental information.

关键词： phase diagram diffusion triple nickel EPMA Ni-Ta-Zr system

Determination of isothermal section of Ag-Ti-Zr ternary system at 1 023 K

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Journal of Central South University of Technology 2007年第6期14卷 750-752页

作者：周果君刘华山刘立斌金展鹏 School of Materials Science and Engineering Central South University

The isothermal section of Ag-Ti-Zr ternary system at 1023 K was determined by diffusion triple and electron probe microanalysis. The results indicate that four binary intermetallic phases of AgTi, AgTi2, AgZr and AgZr2 are found in Ag-Ti-Zr ternary system at 1 023 K. AgZr2 and AgTi2 form a continuous solid solution, namely Ag(Ti,Zr)2. Four three-phase regions: AgTi +AgZr + Ag, AgTi +AgZr + Ag (Ti, Zr)2, α-Zr +β(Ti, Zr) + Ag (Ti, Zr) 2 and α-Ti +β(Ti, Zr) + Ag (Ti, Zr)2 exist in the isothermal section. No ternary compound is observed.

关键词： Ag-Ti-Zr phase diagram diffusion triple isothermal section

Determination of isothermal section of Ni-Re-Hf ternary system at 1173 K

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Journal of Central South University of Technology 2002年第2期9卷 77-80页

作者：王日初柳春雷金展鹏 1. Department of Materials Science and Engineering Central South University 410083 Changsha China

The phase equilibriua in the Ni Re Hf ternary system at 1173K were investigated by means of diffusion triple technique and electron microprobe analysis(EMPA). The experimental results indicate that two ternary intermetallics (α and β) and five binary intermetallics (Ni 3Hf, Ni 10 Hf 7, Ni 11 Hf 9, NiHf and NiHf 2) exist in the Ni Re Hf system at 1?173 K. A tentative isothermal section of this system at 1?173 K was constructed on the basis of experimental results. The isothermal section consists of nine three phase regions, five of which are supported by the experimental data.

关键词： Ni Re Hf ternary system diffusion triple diffusion layers phase equilibrium isothermal section

Isothermal section of Al-Ti-Zr ternary system at 1073 K

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Transactions of Nonferrous Metals Society of China 2016年第11期26卷 3052-3058页

作者：吕凯丽杨冯谢止云刘华山蔡格梅金展鹏中南大学材料科学与工程学院长沙410083

Through alloy sampling combined with diffusion triple technique, phase equilibria in Al-Ti-Zr ternary system at 1073 Kwere experimentally determined with electron probe microanalysis （EPMA）. Experimental results show that there is a solid solutionβ（Ti,Zr） which dissolves Al up to 16.3% （mole fraction）. Ti and Zr can substitute each other in most Ti-Al and Al-Zr binaryintermediate phases to a certain degree while the maximum solubility of Zr in Ti3Al and TiAl reaches up to 17.9% and 4.0% （molefraction）, respectively. The isothermal section consists of 16 single-phased regions, 27 two-phased regions and 14 three-phasedregions. No ternary phase was detected.

关键词： Al-Ti-Zr ternary system phase equilibrium diffusion triple solubility

Isothermal section of Mg-Nd-Gd ternary system at 723 K

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Transactions of Nonferrous Metals Society of China 2014年第3期24卷 777-782页

作者：肖龙钟燕陈翠萍吴刘明明罗天旷刘立斌林葵中南大学材料科学与工程学院长沙410083 中南大学有色金属材料科学与工程教育部重点实验室长沙410083 广西分析测试研究中心南宁530022

An isothermal section of the Mg-Nd-Gd ternary system at 723 K was established by diffusion triple technique and electron probe microanalysis （EPMA）. Mg3Gd and Mg3Nd form a continuous solid solution （Gd,Nd）3Mg, and a continuous solid solution （Gd,Nd）Mg is also formed between MgGd and MgNd. Mg7Gd, Mg5Gd, Mg2Gd, Mg41Nd5, （Gd,Nd）3Mg and （Gd,Nd）Mg are found in the ternary system. In these intermetallic phases, Mg7Gd has been reported to be a metastable phase in previous literatures. The solubilities of Mg, Gd and Nd in all the phases were detected. Furthermore, four three-phase equilibria, α（Mg）＋Mg7Gd＋Mg41Nd5, Mg7Gd＋Mg5Gd＋Mg41Nd5, Mg5Gd＋Mg41Nd5＋（Gd,Nd）3Mg and （Gd,Nd）3Mg＋（Gd,Nd）Mg＋Mg2Gd, were identified in the isothermal section.

关键词： magnesium alloy Mg-Nd-Gd diffusion triple phase diagram isothermal section

Phase equilibria in Ti-Ni-Pt ternary system

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Transactions of Nonferrous Metals Society of China 2018年第3期28卷 574-584页

作者： Yue ZHONG Yue SUN Hua-shan LIU Ge-mei CAI Zhan-peng JIN School of Materials Science and Engineering Central South UniversityChangsha 410083China

Phase equilibria in Ti?Ni?Pt ternary system have been experimentally determined through diffusion triple technique combined with alloy samples *** with electron probe microanalysis(EPMA)and X-ray diffraction(XRD)techniques,isothermal sections at 1073 and 1173 K of this system were constructed and existence of ternary phase Ti2(Ni,Pt)3 was *** addition,binary compounds Ti3Pt5 and TiPt3-were found to be stable at 1073 and 1173 K,and remarkable ternary solubility in some binary compounds was detected,e.g.,solubility of Pt in TiNi can be up to about 36%(molar fraction)at 1073 K and 40%(molar fraction)at 1173 ***,a ternary invariant transition reaction TiNi3+Ti3Pt5→Ti2(Ni,Pt)3+TiPt3+at a temperature between 1073 and 1173 K was deduced.

关键词： Ti-Ni-Pt ternary system phase equilibrium diffusion triple solubility

DETERMINATION OF ISOTHERMAL SECTION OF Fe-Ni-Zr TERNARY SYSTEM AT 1198K

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Acta Metallurgica Sinica(English Letters) 2007年第6期20卷 398-402页

作者： G.J. Zhou S. Jin L.B. Liu H.S. Liu Z.P. Jin School of Materials Science and Engineering Central-South UniversityChangsha 410083 China

The isothermal section of Fe-Ni-Zr ternary system at 1198K was experimentally determined using diffusion triple technique together with scanning electron microscopy （SEM） and electron probe microanalysis （EPMA ）. The results indicate that there are seven binary intermetallic phases, Fe2Zr, FeZr2, Nir2, NiZr, Ni10Zr7, Ni7Zr2 and Ni5Nr, found in the temary system, the binary compounds NiZr2 and FeZr2 show a homogeneity range and form a continuous solid solution, namely （Fe, Ni）Zr2 Five three-phase sections, γ（Fe,Ni）＋ Ni3Zr2 ＋ Ni5Zr,γ（Fe, Ni）＋ Ni7Zr2 ＋ Ni10Zr7, γ（Fe,Ni）＋ Fe2Zr ＋ Ni10Zr7, （Fe,Ni）Zr2 ＋ Fe2Zr ＋ Nil0Zr7, and （Fe,Ni）Zr2 ＋ NiZr ＋ Ni10Zr7, exist in the isothermal section. No ternary compound is observed.

关键词： Fe-Ni-Zr diffusion triple isothermal section phase diagram

Miscibility Gap in the Fe-Cu-Ni System at 1173 K

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Journal of Materials Science & Technology 1992年第3期8卷 181-184页

作者：甘卫平金展鹏 Central-South University of Technology Changsha410083China To whom correspondence should be addressed Central-South University of Technology Changsha410083China

The isothermal section of the Fe-Cu-Ni ternary system at 1173 K was determined by microprobe analysis and diffusion triple technique. The experimental results show that this isothermal section only contains a miscibil... 详细信息

关键词： Fe-Cu-Ni phase diagram miscibility gap diffusion triple