Effects of Temperature on Crystallization Behavior of Bulk(Cu_(50)Zr_(42)Al_8)_(96)Y_4 Amorphous Alloy

Crystallization behavior of bulk(Cu50Zr42Al8)96Y4 amorphous alloy during continuous temperature increment was described.With increasing of the temperature,The results indicate that the glass transformation temperature(Tg),crystallization initial temperature(Tx)and crystallization peak temperature(Tp) tend to high temperature zone,and under-cooled temperature zone △Tx is enlarged to 72.5K.The glass transformation activation energy Eg,crystallization initial activation energy Ex and crystallization peak activation energy Ep are calculated by the Kissinger formula which is 512.34 kJ/mol,372.44 kJ/mol,404.52 kJ/mol and 404.75 kJ/mol respectively.In addition,crystallization phase activation energy Ex is calculated by the FWO equation.The research found that there is no notable change in the crystallization phase activation energy is increased with the increasing of crystallization degree when crystallization degree is lower than 50%;on the contrary,when crystallization degree is higher than 50%,the crystallization phase activation energy is decreased with the increasing of crystallization degree.