Mg-based amorphous alloys with extended supercooled liquid region produced by mechanical alloying

Mg-Y-TM (TM = Cu, Ni) amorphous alloys have been prepared by mechanical alloying exhibiting an extended supercooled liquid region before crystallization. The powders were investigated by X-ray diffraction and differential scanning calorimetry (DSC). The thermal stability of these materials, their crystallization kinetics and their grain growth were investigated by means of DSC heated at 40 K/min and isothermal annealing. The results indicate that the crystallization behavior of the mechanically alloyed powders is nearly identical with that of rapidly quenched samples.