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Phase formation at an interface between aluminum and an iron-nickel alloy

  • Physicochemical and Structural Investigations of Materials
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

Electron-probe microanalysis has been applied to the compositions of single-phase intermetallide layers and two-phase reaction zones at the interfaces between liquid aluminum saturated with alloy components at 700°C and iron-nickel alloys having iron contents of 90, 75, 50, 25, 20, 15, and 10 mass %. Binary intermetallides (FeAl3, Fe2Al7, NiAl3, and NiAl2) and a ternary intermetallide FeNiAl9 are formed. All the binary compounds dissolve considerable amounts of the third element (Ni or Fe) and have appreciable homogeneity ranges. The dissolution of the Fe−Ni alloy in the pure liquid aluminum reduces the total thicknesses of the intermetallide layers growing between the alloy and the aluminum by a factor 3–5 by comparison with a saturated aluminum melt.

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Authors
  1. V. I. Dybkov
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Additional information

Institute for Problems of Materials Science, Ukraine National Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya, Nos. 11–12(410), pp. 67–74, November–December, 1999.

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Dybkov, V.I. Phase formation at an interface between aluminum and an iron-nickel alloy. Powder Metall Met Ceram 38, 590–596 (1999). https://doi.org/10.1007/BF02676192

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  • DOI: https://doi.org/10.1007/BF02676192

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