Microstructure evolution of an Al–Fe–Ni alloy with Zr and Sc additions upon different cooling rates during solidification for improving the mechanical and electrical conductivity properties S. Chankitmunkong, D. G. Eskin, C. Limmaneevichitr
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ArticleContent type: Текст Media type: электронный Subject(s): дисперсионное твердение | затвердевание | механические свойства | электропроводные свойства | эвтектические сплавы | алюминиевые сплавы | интерметаллидыGenre/Form: статьи в сборниках Online resources: Click here to access online
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Light metals 2021 P. 232-238Abstract: Al–Fe–Ni eutectic alloys have high potential for being alternative aluminum alloys for various electronic and electrical applications instead of conventional low-conductivity Al casting alloys. Furthermore, the addition of Zr and Sc up to 0.3–0.6 wt% improves the hardness for high temperature applications, which is a result of the finer Al–Fe–Ni eutectic structure, and precipitation hardening of Al3Zr and/or Al3Sc nanoprecipitates. Thus, the aim of the present contribution is to analyze the microstructure features changes in an Al-1.75Fe–1.25Ni eutectic alloy upon different cooling rates during solidification. The features of Al–Fe–Ni eutectics and intermetallics were studied quantitatively, and the mechanical properties and electrical conductivity were measured.
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Al–Fe–Ni eutectic alloys have high potential for being alternative aluminum alloys for various electronic and electrical applications instead of conventional low-conductivity Al casting alloys. Furthermore, the addition of Zr and Sc up to 0.3–0.6 wt% improves the hardness for high temperature applications, which is a result of the finer Al–Fe–Ni eutectic structure, and precipitation hardening of Al3Zr and/or Al3Sc nanoprecipitates. Thus, the aim of the present contribution is to analyze the microstructure features changes in an Al-1.75Fe–1.25Ni eutectic alloy upon different cooling rates during solidification. The features of Al–Fe–Ni eutectics and intermetallics were studied quantitatively, and the mechanical properties and electrical conductivity were measured.
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