The aim of presented paper is the analysis of precipitations morphology of tungsten in quasicrystal Al-Cu-Fe alloys. The composition of Al₆₅Cu₂₀Fe₁₄W₁ (at.%) was a base for preparation of bulk alloy in the form of ingot containing the icosahedral quasicrystalline phase.

The alloy was obtained in a two-stage process. At the first stage, the induction heating synthesis of alloy substrates and their preliminary homogenization were carried out using the mechanical mixing. The second stage was carried out by vertical directional solidification of the classic Bridgman method. The technological process was performed under protective atmosphere of helium (5N).

The samples were cut using electrical spark-erosion cutter. X-ray phase analysis, electron microscopy (SEM) and optical metallographic observations were performed.

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