Solid State Phase Equilibria of an Al–Sn–Y Ternary System

A complete understanding of the solid-state phase equilibria of the ternary Al–Sn–Y system is essential for the development of both Al-based structural materials and Sn-based lead-free solders. In this work, the phase relationships in the Al–Sn–Y ternary system at 473 K were investigated mainly by means of X-ray powder diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) with energy disperse spectroscopy (EDS) analysis. The existence of 12 binary compounds, namely Sn3Y, Sn5Y2, Sn2Y, Sn10Y11, Sn4Y5, Sn3Y5, AlY2, Al3Y5, Al2Y3, AlY, Al2Y and α–Al3Y, was confirmed. Controversial phases (Sn5Y2 and Al3Y5) were found in this work. This isothermal section consisted of 15 single-phase regions, 27 two-phase regions and 13 three-phase regions. No ternary compounds were found and none of the other phases in this system revealed a remarkable solid solution at 473 K.

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Phase relationships in the Ce–Nd–B system at 773 K

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) ◽

10.1515/ijmr-2020-1110610 ◽

2020 ◽

Vol 111 (6) ◽

pp. 526-532

Author(s):

Xuehong Cui ◽

Jinming Zhu ◽

Ketong Luo ◽

Jianlie Liang

Keyword(s):

Solid Solution ◽

Ternary System ◽

Continuous Solid Solution ◽

Solution Phase ◽

Solid Solution Phase ◽

X Ray Diffraction ◽

Two Phase ◽

X Ray ◽

Three Phase ◽

Phase Relationships

Abstract Phase relationships in the Ce-Nd-B ternary system at 773 K were investigated by means of X-ray diffraction and scanning electron microscopy with energy dispersive X-ray spectroscopy techniques. Six borides, i. e. CeB4, CeB6, NdB4, NdB6, NdB66 and Nd2B5 are confirmed in this work. No ternary compound was observed. CeB4 and NdB4 were discovered to form the continuous solid solution phase (Ce,Nd)B4, CeB6 and NdB6 also form the solid solution phase (Ce,Nd)B6. The maximum solid solubility of Ce in (Ce,Nd)2B5 phase is 46.5 at.%. The isothermal section of the Ce-Nd-B ternary system at 773 K consists of 3 three-phase regions, 7 two-phase regions and 7 single- phase regions.

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Phase Equilibria among γ-Fe, γ-Fe and Fe2Mo Phases and Stability of the Laves Phase in Fe-Mo-Ni Ternary System at Elevated Temperatures

MRS Proceedings ◽

10.1557/proc-980-0980-ii05-17 ◽

2006 ◽

Vol 980 ◽

Cited By ~ 2

Author(s):

Shigehiro Ishikawa ◽

Takashi Matsuo ◽

Masao Takeyama

Keyword(s):

Ternary System ◽

Phase Equilibria ◽

Elevated Temperatures ◽

Phase Region ◽

Homogeneity Region ◽

Nickel Concentration ◽

Peritectoid Reaction ◽

Two Phase ◽

Three Phase ◽

Binary Edge

AbstractPhase equilibria among the bcc Fe(α), fcc Fe(γ) and Fe2Mo(λ)_phases in Fe-Mo-Ni ternary system, particularly paying attention to the existence of the γ+λ two-phase region, have been examined at elevated temperatures below Tc (1200 K), the peritectoid reaction temperature in Fe-Mo binary system: λ?α+Fe7Mo6 (μ). At 1173 K the α+γ+μ three-phase coexisting region exists near the Fe-Mo binary edge and no λ phase region was identified. At 1073 K the λ phase in equilibrium with α and γ phases exists, although the composition homogeneity region of the ternary λ phase was limited to its binary edge toward the equi-nickel concentration direction up to about 3at % Ni. Instead, large two-phase region of γ+μ was extended along the same direction up to 20 at% Ni. The γ+λ two-phase region appears below Tc through a transition peritectoid reaction: α+μ¨γ+λ. The γ phase in equilibrium with λ phase is stable only at elevated temperatures, and it transforms martensitically to α phase during cooling. The addition of Ni stabilizes γ and μ phases against α and λ phases, thereby decreasing the relative stability of the λ phase.

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Phase Equilibria in the Er-Cu-V and Dy-Cu-V at 773K

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.815.3 ◽

2013 ◽

Vol 815 ◽

pp. 3-7

Author(s):

Shi Ping Guo ◽

Wei He ◽

Yun Hong Zhao ◽

Ling Min Zeng

Keyword(s):

Isothermal Section ◽

Phase Equilibria ◽

Ternary Compound ◽

Single Phase ◽

Ternary Systems ◽

Two Phase ◽

Isothermal Sections ◽

Three Phase ◽

Binary Compounds

The isothermal sections of the Er-Cu-V and Dy-Cu-V ternary systems at 773K were investigated by experiments. The isothermal section of Er-Cu-V consists of 8 single-phase regions, 13 two-phase regions and 6 three-phase regions. The binary compounds ErCu5, ErCu2, ErCu, Er2Cu9and Er2Cu7were observed at 773K. The isothermal section of Dy-Cu-V consists of 7 single-phase regions, 11 two-phase regions and 5 three-phase regions. The binary compounds DyCu5, DyCu2, DyCu and Dy2Cu9were confirmed at 773K. No ternary compound was found in the two sections. There is no solubility of V in the Er-Cu and Dy-Cu binary compounds observed.

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Phase Relationships in the Y–Fe–V Ternary System at 773 K

Materials Science Forum ◽

10.4028/www.scientific.net/msf.704-705.475 ◽

2011 ◽

Vol 704-705 ◽

pp. 475-479

Author(s):

Shun Kang Pan ◽

Rui Yan ◽

Huai Ying Zhou ◽

Li Chun Cheng ◽

Qing Rong Yao ◽

...

Keyword(s):

Ternary System ◽

Single Phase ◽

Maximum Solid Solubility ◽

X Ray Diffraction ◽

Two Phase ◽

Energy Dispersion Spectroscopy ◽

X Ray ◽

Three Phase ◽

Scanning Electron ◽

Phase Relationships

The isothermal section of the phase diagram of the ternary system Y–Fe–V at 773 K was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS) techniques. It consists of 9 single-phase regions, 16 two-phase regions and 8 three-phase regions. The ternary compound YFe12-xVx (1.5≤x≤2.7, space group I4/mmm) with Mn12Th-type structure was confirmed in this system. At 773 K, the maximum solid solubility of V in Fe, and YFe2, is about 23 at.%, and 3 at.%, respectively, Fe in V is about 22 at.%. And that of Y in Fe, FeV and V don′t exceed 1 at.%.

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Phase equilibria of the Cu–Dy–Ti ternary system at 973 K

Powder Diffraction ◽

10.1017/s0885715615000287 ◽

2015 ◽

Vol 30 (3) ◽

pp. 218-223

Author(s):

Yanfang Pan ◽

Hao Liu ◽

Wenchao Yang ◽

Bo Zhang ◽

Hongqun Tang ◽

...

Keyword(s):

Solid State ◽

Ternary System ◽

Phase Equilibria ◽

Homogeneity Range ◽

Solid Solubility ◽

Ternary Phase ◽

Single Phase ◽

Phase Relations ◽

The Other ◽

Binary Compounds

The solid-state phase equilibria of the copper (Cu)–dysprosium (Dy)–titanium (Ti) ternary system at 973 K has been experimentally investigated. The existence of nine binary compounds, Cu4Ti, Cu3Ti2, Cu4Ti3, CuTi, CuTi2, CuTi3, CuDy, Cu2Dy, and Cu5Dy was confirmed. The controversial phase of CuTi3 was found in this work. The temperature range of Cu7Dy was determined to be from 1112 to 1183 K. The phase relations at 973 K are governed by ten ternary phase regions, 21 binary phase regions, and 12 single-phase regions. The solid solubility of Cu in Dy is undetectable. None of the other phase in this system reveals a remarkable homogeneity range at 973 K.

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