Investigation of al62.5cu25fe12.5 quasicrystalline phase formation by rapid solidification followed by mechanical milling

الملخص EN

The formation of the quasicrystalline phase Al62.5Cu25Fe12.5, by twin rolls rapid solidification technique has been investigated.

The obtained phases are cauterized by XRD, Differential Thermal Analysis and electrical resistivity measurements.

The effect of milling on the sample produced by rapid solidification is also examined.

In the as quenched sample, a quasicrystalline (i-phase) is present in a relative high volume fraction, in addition to two other phases that are most likely to be Al2Cu phase and Al7Cu2Fe phase (ω-phase).

The milled samples does not give a single quasicrystalline phase, but the milling tends to stabilize the pre existed i-phase.