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An isothermal section at 550 °C in the Al-Rich corner of the Al-Fe-Mn-Si system

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Abstract

Phase equilibria in the Al corner of the Al-Fe-Mn-Si system at 550 °C have been explored. Twenty-six quaternary alloys were prepared and analyzed by microprobe analysis. Elemental powders were mixed under air and molten at 1000 °C under argon flux. These specimens received a heat treatment at 550 °C during 4 to 12 weeks and finally were water quenched. A four-phase region, where Al, Si,α-Al(Fe,Mn)Si, andβ-Al(Fe,Mn)Si are in equilibrium with each other, was found. The presence of a single-phaseα-Al(Fe,Mn)Si region, starting in the Al-Mn-Si subsystem and extending toward the Al-Fe-Si subsystem, could be confirmed. Some problems concerning the fit of the quaternary system with its ternary Al-Fe-Mn subsystem remain to be solved.

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Authors and Affiliations

  1. the Department of Metallurgy and Materials Engineering, Katholicke Universiteit Leuven, B-3001, Leuven, Belgium

    G. Davignon (Research Assistant), B. Verlinden (Professor), L. Delaey (Professor) & A. Serneels (Research Assistant)

  2. Department of Astronomy of the Kuleuven, Belgium

    G. Davignon (Research Assistant)

  3. Metallurgist with the AMT Company, B 3540, Herk-de-Stad, Belgium

    A. Serneels (Research Assistant)

Authors
  1. G. Davignon
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  2. B. Verlinden
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  3. L. Delaey
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  4. A. Serneels
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Davignon, G., Verlinden, B., Delaey, L. et al. An isothermal section at 550 °C in the Al-Rich corner of the Al-Fe-Mn-Si system. Metall Mater Trans A 27, 3357–3361 (1996). https://doi.org/10.1007/BF02595428

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  • DOI: https://doi.org/10.1007/BF02595428

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