Thermodynamic study of the Cr-Ni-Zr system

Ansara, I.; Dupin, N.; Joubert, Jean‐Marc; Latroche, M.; Percheron-Guégan, A.

doi:10.1007/bf02904717

Cited by 9 publications

(5 citation statements)

References 7 publications

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“…Boettinger et al [21] studied the solidification microstructures of some representative Cr-Ni-Zr alloys which were used as the metal hydride (MH) electrode in nickel metal-hydride batteries by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). They also calculated the Scheil and equilibrium solidification paths with the thermodynamic parameters assessed by Ansara et al [17] The observed solidification sequence of C14/C15 agrees well with predictions using effective compositions and thermodynamic assessments of the Cr-Ni-Zr ternary systems.…”

Section: Ternary Systemsupporting

confidence: 61%

“…Ni 5 Zr was reported at 1220 °C. Ansara et al [17] made a thermodynamic study of the Cr-Ni-Zr ternary system and calculated the isothermal sections at 500 and 1000 °C. The calculation agrees well with the experimental work by Joubert et al [15] By means of diffusion triple and EMPA techniques, Pan and Jin [18] investigated the phase relation of the ternary Cr-Ni-Zr system at 900 °C.…”

Section: Ternary Systemmentioning

confidence: 99%

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Experimental Investigation of Phase Equilibria in the Cr-Ni-Zr Ternary System

Tang

et al. 2022

J. Phase Equilib. Diffus.

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In the literature, knowledge of the phase relations in the Cr-Ni-Zr system is limited. To remedy the situation, the phase equilibria of the Cr-Ni-Zr ternary system at 1273 K were investigated via experimental techniques applied to 13 key ternary alloys. In addition, 7 ternary alloys were prepared to determine the isothermal section at 1373 K in the ZrCr 2 -NiZr-Ni-Cr region. X-ray diffraction analysis (XRD) and electron probe micro-analysis (EPMA) were used for the phase identification and composition measurement, respectively. According to the experimental results, the isothermal sections of the Cr-Ni-Zr system at 1273 and 1373 K were constructed and 3 three-phase regions were identifying in the isothermal section at 1273 K. The phase relations from the present work and the literature are compared and analyzed. The presently obtained phase equilibria in the Cr-Ni-Zr ternary system can provide new phase diagram data for a further thermodynamic optimization, which is expected to provide important information for selecting compositions in the design in Cr-Ni-Zr based alloys.

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Section: Ternary Systemsupporting

confidence: 61%

Section: Ternary Systemmentioning

confidence: 99%

Experimental Investigation of Phase Equilibria in the Cr-Ni-Zr Ternary System

Tang

et al. 2022

J. Phase Equilib. Diffus.

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“…Databases exist for four ternary subsystems that permit a preliminary analysis of the solidification behavior: Ni-Ti-Zr, [50] Ni-Cr-Ti, [52] Cr-Ti-Zr, [53] and Ni-Cr-Zr. [54] The Ni-Cr-Zr was not fully evaluated and the liquidus is extrapolated from the assessed binary systems. Shown in Figures 10 through 13 for each of these four systems are the computed liquidus surface and an isothermal section at a temperature where the liquid remains.…”

Section: A Phase Diagramsmentioning

confidence: 99%

Examination of Multiphase (Zr,Ti)(V,Cr,Mn,Ni)2 Ni-MH Electrode Alloys: Part I. Dendritic Solidification Structure

Boettinger¹,

Newbury²,

Wang³

et al. 2010

Metall Mater Trans A

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The solidification microstructures of three nine-element Zr-Ni-based AB 2 type C14/C15 Laves hydrogen storage alloys are determined. The selected compositions represent a class of alloys being examined for usage as an MH electrode in nickel metal-hydride batteries that often have their best properties in the cast state. Solidification is accomplished by dendritic growth of hexagonal C14 Laves phase, peritectic solidification of cubic C15 Laves phase, and formation of cubic B2 phase in the interdendritic regions. The B2 phase decomposes in the solid state into a complex multivariate platelike structure containing Zr-Ni-rich intermetallics. The observed sequence C14/C15 upon solidification agrees with predictions using effective compositions and thermodynamic assessments of the ternary systems, Ni-Cr-Zr and Cr-Ti-Zr. Experimentally, the closeness of the compositions of the C14 and C15 phases required the use of compositional mapping with an energy dispersive detector capable of processing a very high X-ray flux to locate regions in the microstructure for quantitative composition measurement and transmission electron microscope examination.

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“…Based on these experimental results, a thermodynamic study of the Cr-Ni-Zr system was performed by [5] and calculated isothermal sections at 1000 and 500 °C were presented. The 1000 °C isothermal section agrees well with the part that had been experimentally determined by [3] and shows also phase equilibria above 40 at.% Zr.…”

Section: Introductionmentioning

confidence: 99%

“…The 1000 °C isothermal section agrees well with the part that had been experimentally determined by [3] and shows also phase equilibria above 40 at.% Zr. The calculated isothermal section at 500 °C [5] is shown in Fig. 1b.…”

Section: Introductionmentioning

confidence: 99%

Phase equilibria in the Ni–Cr–Zr2Ni7 partial system

Ivanchenko¹,

Kosorukova²

2008

Chem. Met. Alloys

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Alloys from the Ni-Cr-Zr 2 Ni 7 partial system have been studied using optical microscopy, X-ray diffraction, DTA, electron microprobe analysis and microhardness measurements. The existence of two quasibinary sections was established. The projection of the liquidus and solidus of the partial Ni-Cr-Zr system in the composition range Ni-Cr-Zr 2 Ni 7 was constructed and isopleth 8.8 at.% Zr was built.

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Thermodynamic study of the Cr-Ni-Zr system

Cited by 9 publications

References 7 publications

Experimental Investigation of Phase Equilibria in the Cr-Ni-Zr Ternary System

Experimental Investigation of Phase Equilibria in the Cr-Ni-Zr Ternary System

Examination of Multiphase (Zr,Ti)(V,Cr,Mn,Ni)2 Ni-MH Electrode Alloys: Part I. Dendritic Solidification Structure

Phase equilibria in the Ni–Cr–Zr2Ni7 partial system

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