Metall. Res. Technol.
Volume 112, Number 2, 2015
|Number of page(s)||8|
|Published online||09 April 2015|
Structural transformation in quasicrystal-forming Al-Cu-Fe alloys
Laboratory of Magnetism and Spectroscopy of Solids LM2S,
Department of physics, Faculty of Science, Badji-Mokhtar Annaba
Accepted: 3 March 2015
Three Al-Cu-Fe alloys with various iron contents (6 at.%, 12 at.% and 15 at.%), were synthesized by fusion under high-frequency magnetic induction and characterized by X-ray diffraction, scanning electron microscopy and differential scanning calorimetry(DSC). The microstructure evolution was carried out both in the as-quenched state as well after heat treatment at 500 ◦C in relation to iron composition. Particular attention was been paid to the alloy containing 15%, and we were been able to determine by DSC that a massive transformation from crystal (β) to quasicrystal i-ψ (Al6Fe2Cu) occurs for this composition.
Key words: Quasicrystal / aluminum alloys / phase transformation / intermetallic compounds
© EDP Sciences 2015
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