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Zr_~65 Al_~10 Ni_~10 Cu_~15 , Zr_~52.5 Al_~10 Ni_~10 Cu_~15 Be_~12.5 and Zr_~52.5 Al_~10 Ni_~14.6 Cu_~17.9 Ti_5 bulk amorphous alloys were prepared by copper mould casting. The crystallization kinetics was measured by differential scanning calorimeter(DSC) with different heating rates, and the activation energy was calculated using Kissinger equation. The relationship between thermal stability and rate constant of crystallization reaction is discussed on the view of crystallization kinetics, and the effect of small atom Beryllium on thermal stability of bulk amorphous alloys is also studied.
Zr_ ~ 65 Al_ ~ 10 Ni_ ~ 10 Cu_ ~ 15 Zr_ ~ 52.5 Al_ ~ 10 Ni_ ~ 10 Cu_ ~ 15 Be_ ~ 12.5 and Zr_ ~ 52.5 Al_ ~ 10 Ni_ ~ 14.6 Cu_ ~ 17.9 Ti_5 bulk amorphous alloys were prepared by copper mold casting. The crystallization kinetics was measured by differential scanning calorimeter (DSC) with different heating rates, and the activation energy was calculated using Kissinger equation. The relationship between thermal stability and rate constant of crystallization kinetics, and the effect of small atom Beryllium on thermal stability of bulk amorphous alloys is also studied.