Stability of ordered L12 phase in Ni3Fe–Ni3X (X:Si and Al) pseudobinary alloys

Himuro, Y.; Tanaka, Yuuki; Kamiya, Nobuo; Ohnuma, Ikuo; Kainuma, Ryosuke; Ishida, K.

doi:10.1016/j.intermet.2004.03.008

Cited by 37 publications

(32 citation statements)

References 14 publications

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“…They are in agreement both with the data determined in [22] (results referred in [23]), where metallography observations, electron probe analysis, differential scanning calorimetry, electrical resistivity studies were performed and with the data in [23] where energy dispersion spectroscopy, EPMA, electrical resistivity, TEM and TEM-EDX studies were carried out. They also agree with the results of [24] where optical observations were carried out.…”

Section: Disscusionsupporting

confidence: 89%

Formation Enthalpy of AlNi3-Based Alloys with Iron Additions by Calorimetric Solution and Direct Reaction Methods

Rzyman¹,

Gachon²

2010

Archives of Metallurgy and Materials

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The enthalpies of formation of AlNi 3 -based alloys with iron additions were determined both by solution and direct reaction calorimetry. The results were analyzed in order to determine phase boundaries in the pseudo-binary AlNi 3 -FeNi 3 system. Keywords: AlNi 3 , calorimetry, formation enthalpy, solution method, direct reaction method Entalpia tworzenia stopów na osnowie AlNi 3 z udziałem żelaza została wyznaczona doświadczalnie kalorymetryczną metodą rozpuszczania oraz metodą bezpośredniej reakcji. Uzyskane wyniki przeanalizowano pod kątem wyznaczenia granic międzyfazowych w badanym pseudo-binarnym układzie AlNi 3 -FeNi 3 .

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Section: Disscusionsupporting

confidence: 89%

Formation Enthalpy of AlNi3-Based Alloys with Iron Additions by Calorimetric Solution and Direct Reaction Methods

Rzyman¹,

Gachon²

2010

Archives of Metallurgy and Materials

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“…The formation of the L1 2 phase in Ni-rich Ni-Fe-Si alloys has previously been studied by Himuro et al [27,28], who observed that the L1 2 Instead, these results appear to indicate the substitution of Fe for Ni, and not Si, in  which is consistent with the chemical similarity of Fe and Ni. TEM analysis confirms that the L1 2 phase obtained in the present work is single phase (Fig.…”

Section: Discussionsupporting

confidence: 58%

Solidification morphology and phase selection in drop-tube processed Ni–Fe–Si intermetallics

Cao

Mullis

2015

Intermetallics

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Drop-tube processing was used to rapidly solidify droplets of Ni 64.7 Fe 10 Si 25.3 and Ni 59.7 Fe 15 Si 25.3 alloys. In the larger droplets, and therefore at low cooling rates, only two phases, -Ni 31 Si 12 and 1 -Ni 3 Si were observed. Conversely, in the smaller droplets, and therefore at higher cooling rates, the metastable phase Ni 25 Si 9 was also observed. The critical cooling rate for the formation of Ni 25 Si 9 was estimated as 5×10 and as yet unidentified, phase. These results indicate that there is an extended stability field for Ni 25 Si 9 in the Ni-rich part of the Ni-Fe-Si ternary system in comparison to the Ni-Si binary system. With an increase of cooling rate, an increasing fraction of small droplets experience high undercoolings and, therefore, can be undercooled into the Ni 25 Si 9 stability field forming droplets consisting of only the anomalous structure (III). The Fe atoms are found to occupy different substitutional sites in different phase, i.e. Fe substitutes for Ni in the phase and Si in the L1 2 ( 1 ) phase respectively.

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“…In a recent phase diagram assessment of the Fe-Ni-Al system, Eleno et al [2] gave a good overview of the experimental work performed in the system. The considerable disparity in the equilibrium data within the section Ni 3 Al-Ni 3 Fe [3][4][5][6][7] is shown in Fig. 1, which was taken from Eleno et al [2] Large differences in the experimental results are observed for the boundaries of the two-phase field [c¢ + c].…”

Section: Introductionmentioning

confidence: 99%

Experimental Phase Diagram Investigations in the Ni-Rich Part of Al-Fe-Ni and Comparison with Calculated Phase Equilibria

Chumak

Richter

Fries

et al. 2007

J Phs Eqil and Diff

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The phase equilibria in the section Ni 3 Fe-Ni 3 Al and phase boundaries of c¢(Ni 3 Al) at 1000°C were studied by a combination of powder X-ray diffraction (XRD), differential thermal analysis (DTA), and electron probe microanalysis (EPMA). The existence of a continuous solid solution at 450°C was confirmed by a linear decrease of the lattice parameter from Ni 3 Al to Ni 3 Fe. The phase boundaries of c¢ with c and the B2-type phase were determined at 1000°C by EPMA. A vertical section of the phase diagram from Ni 3 Al to Ni 3 Fe above 450°C, including the liquidus temperatures, is proposed based on the DTA investigations. The invariant four-phase equilibrium U: L + c¢ = c + B2 is found to occur at 1366 ± 1°C. The experimental data are compared with a calculated phase diagram obtained by extrapolation from the corresponding binary data sets.

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Stability of ordered L12 phase in Ni3Fe–Ni3X (X:Si and Al) pseudobinary alloys

Cited by 37 publications

References 14 publications

Formation Enthalpy of AlNi3-Based Alloys with Iron Additions by Calorimetric Solution and Direct Reaction Methods

Formation Enthalpy of AlNi3-Based Alloys with Iron Additions by Calorimetric Solution and Direct Reaction Methods

Solidification morphology and phase selection in drop-tube processed Ni–Fe–Si intermetallics

Experimental Phase Diagram Investigations in the Ni-Rich Part of Al-Fe-Ni and Comparison with Calculated Phase Equilibria

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