Experimental Phase Diagram Investigations in the Ni-Rich Part of Al-Fe-Ni and Comparison with Calculated Phase Equilibria
Source abstract
Abstract
The phase equilibria in the section Ni3Fe-Ni3Al and phase boundaries of γ′(Ni3Al) 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 Ni3Al to Ni3Fe. The phase boundaries of γ′ with γ and the B2-type phase were determined at 1000°C by EPMA. A vertical section of the phase diagram from Ni3Al to Ni3Fe above 450 °C, including the liquidus temperatures, is proposed based on the DTA investigations. The invariant four-phase equilibrium U: L + γ′ = γ + 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.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · High Temperature Alloys and Creep · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
Show source-provided references
1. D. Letzig, J. Klöwer, G. Sauthoff, Screening of NiAl-Base Ni-Fe-Al Alloys for Structural High Temperature Applications and Development of a New Ni-30Fe-10Al-Cr Alloy, Z. Metallkd., 1999, 90, p 712-721
2. L. Eleno, K. Frisk, A. Schneider, Assessment of the Fe-Ni-Al System, Intermetallics, 2006, 14, p 1276-129010.1016/j.intermet.2005.11.021 ↗
3. Y. Himuro, Y. Tanaka, N. Kamiya, I. Ohnuma, R. Kainuma, K. Ishida, Stability of Ordered L12 Phase in Ni3Fe-Ni3X (X: Si and Al) Pseudobinary Alloys, Intermetallics, 2004, 12, 635-64310.1016/j.intermet.2004.03.008 ↗
4. N. Masahashi, H. Kawazoe, T. Takasugi, O. Izumi, Phase Relations in the Section Ni3Al-Ni3Fe of the Al-Fe-Ni System, Z. Metallkd., 1987, 78, p 788-794
5. A. J. Bradley, Microscopical Studies on the Iron-Nickel-Aluminium System. Part I—α + β Alloys and Isothermal Sections of the Phase Equilibrium Diagram, J. Iron Steel Inst., 1949, 163, p 19-30
6. C. C. Jia, K. Ishida, T. Nishizawa, Partition of Alloying Elements Between γ (A1), γ′ (L12) and β (B2) Phases in Ni-Al Base Systems, Metall. Mater. Trans. A., 1994, 25, p 473-48510.1007/BF02651589 ↗
7. V. I. Goman’kov, S. M. Tret’yakova, E. V. Monastyrskaya, L. E. Fykin, Диаграммы структурных состояний сплавов квазидвойных разрезов Ni3Fe-Ni3Al, Ni3Mn-Ni3Al и Ni3Mn-Ni3Ga, Russ. Metall., 1998, 6, p 104-108, in Russian
8. TOPAS V2.1: General Profile and Structure Analysis Software for Powder Diffraction Data. Bruker AXS, Karlsruhe, Germany
9. A. Lutts, P. M. Gielen, Order-Disorder Transformation in FeNi3, Phys. Status Solid., 1970, 41, p K81-K8410.1002/pssb.19700410169 ↗
10. M. Ellner, K. Kolatschek, B. Predel, On the Partial Atomic Volume and the Partial Molar Enthalpy of Aluminium in Some Phases with Copper and Cu3Au Structures, J. Less-Common Met., 1991, 170, p 171-18410.1016/0022-5088(91)90062-9 ↗
11. W. Kraus, G. Nolze, POWDER CELL: A Program for the Representation and Manipulation of Crystal Structures and Calculation of the Resulting X-ray Powder Patterns., J. Appl. Cryst., 1996, 29(3), p 301-30410.1107/S0021889895014920 ↗
12. N. Dupin, I. Ansara, B. Sundman, Thermodynamic Re-assessment of the Ternary System Al-Cr-Ni, Calphad, 2001, 25, p 279-29810.1016/S0364-5916(01)00049-9 ↗
13. Seierstein M. Thermochemical Database for Light Metal Alloys, Volume 2, Chapter System Al-Fe. European Comission, Bruxelles, 1998, p 34-39
14. A. Dinsdale and T. Chart, MDTS NPL, 1986, Unpublished
15. I. Ansara, Private communication, 2000