Formation of Cu-Zr-Ti amorphous alloys with significant supercooled liquid region by mechanical alloying

摘要

The amorphous Cu90-xZr_xTi_(10) (x chemical bounds 20 approx 80), Cu_(10)-xZr_XTi_(20) (x chemical bounds 30 approx 50), Cu90-xZr_X Ti30 (x chemical bounds 30,40) and Cu_(40)Zr_(20)Ti_(40)alloys were successfully synthesized by mechanical alloying mixtures of pure crystalline Cu, Ti and Zr powders with PSEX high energy ball mill. These ranges ar similar to those for amorphous alloys produced by metl-spining or argon atomization techniques. The structure and thermal stability of these alloys were analysed by x-ray diffraction and differential scanning calorimeter.