A Novel Approach to Analysis of Complex Crystallization Behavior in Zr-Based Bulk Metallic Glass by Non-isothermal Kinetics Studies

Abstract The complex crystallization behavior of the Zr 40 Ti 15 Cu 10 Ni Be 25 bulk metallic glass (BMG) produced by suction-casting method was studied with non-isothermal DSC measurements heating rate from 5 to K/min. Three exothermic phenomena were observed for investigated material. novel evaluation procedure qualitative and quantitative analysis intricate kinetics Zr-based BMGs is proposed. unusual deconvolution curves based on a Gaussian function two-phase exponential decay allowed separate, detailed overlapped peaks. activation energies each stage overall (Kissinger) local (Kissinger–Akahira–Sunose) procedures. KAS applied separately both low high rates showed significant difference in energies. Finally, Avrami exponent revealed that first two stages are diffusion-controlled mainly increasing nucleation rate, whereas third more growth-dominated.