An Investigation Of Amorphization In Fe-Al Alloys During Mechanical Alloying

Year 2008, Volume: 21 Issue: 1, 183 - 192, 30.06.2008

Hakan Gaşan O.nuri Çelik Nedret Aydınbeyli

Abstract

In order to determine the
amorphization time, Fe and Al elemental powder mixtures with composition of Fe10.8Al89.2, Fe50Al50 and Fe80Al20 were mechanically
alloyed in a Spex 8000D Mixer/Mill for up to 96 h. The characterization of
Fe-Al powder mixtures was studied as a function of mechanical alloying time by
X-ray diffractometry and scanning electron microscopy. A fully amorphous phase
was not observed by X-ray diffraction for Fe10.8Al89.2 and Fe80Al20 even after
96 h mechanical alloying. However, X-ray diffraction observation showed that 50
h mechanical alloying of Fe50Al50 alloy resulted in a fully amorphous phase formation.

Keywords

Mechanical alloying, amorphous alloys, Fe-Al

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