利用电弧炉＋铜模吸铸的方法制备了Zr46.3Cu43.4Al8.3Nb2（at％）块体非晶合金。利用示差扫描量热仪（DSC）研究了合金的热稳定性，利用Kissinger方法计算了其特征温度表观激活能，利用Doyle方法计算了其局域激活能。结果表明，Zr46.3Cu43.4Al8.3Nb2块体非晶合金具有良好的热稳定性。各特征温度的表观激活能分别为：玻璃转变激活能（Es）为302．7kJ／mol、晶化起始激活能（E。）为445．853kJ／mol、晶化峰值激活能（EF）为389．20kJ／mol。局域激活能随着晶化体积分数的增加而显著减小。
Zr46.3Cu43. 4Al8 3Nb2（at% ） bulk metallic glass alloy was prepared by using copper mould casting. The thermal stability ol the alloy was investigated mainly by differential scanning calorimeter （ DSC）. The activation energy was obtained from the Kissinger and Doyle equations. The results show that the activation energy of glass transition （Eg） , crystallization （ Ex） and peak crystallization （Ep） are 302.7 kJ/mol, 445. 853 kJ/mol and 389.2 kJ/mol, respectively. The local crystallization activation energy decreases with increasing of the crystallized volume fraction. The results indicate that the alloy has desirable thermal stability.
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