Abstract
Non-isothermal crystallization kinetics of (Zr55Cu30Al10Ni5)99Nb1 bulk metallic glass (BMG) was studied by differential thermal analysis and differential scanning calorimetry. The crystallization pathway was changed by increasing the heating rate. The apparent activation energy at characteristic temperatures was calculated using Kissinger method. Local activation energy variations by crystallized volume fraction (α) (a.u. Ec(α)) was extracted using Ozawa-Flynn-Wall (OFW) method. Crystallization reaction function (f(α)) at different heating rates was extracted by means of Šesták-Berggren (SB) model.
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