Consolidation of Amorphous Al80Fe10Ti5Ni5 Powders by Hot Pressing

الملخص EN

The current study investigates the feasibility of fabricating amorphous Al80Fe10Ti5Ni5 powders by mechanical alloying and consolidating them into bulk samples by a hot-pressing technique.

As-milled and hot-pressed samples were examined by X-ray diffraction, scanning electron microscopy, transition electron microscopy, and differential scanning calorimetry.

The results showed that milling of Al80Fe10Ti5Ni5 powder for 40 h and hot pressing at 550°C under 600 MPa led to a fully dense bulk sample.

During consolidation, an AlTi intermetallic phase with average crystallite size of 10 nm precipitates in the amorphous matrix.