Thermal stability of ZrCuAlNb bulk metallic glass

被引：0

作者：

Zhang, Bao-Qing ^{[1
]}

Cao, Guo-Hua ^{[2
]}

Zong, Hai-Tao ^{[2
]}

Liu, Bao-Zhong ^{[1
]}

Zhang, Zhi ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China

[2] School of Physics and Chemistry Polytechnic University, Jiaozuo 454000, China

来源：

Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | 2012年 / 33卷 / 07期

关键词：

Differential scanning calorimetry - Glass - Activation energy - Glass transition - Niobium alloys - Zirconium alloys - Crystallization kinetics - Binary alloys - Metallic glass - Copper alloys - Aluminum alloys;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Zr46.3Cu43.4Al8.3Nb2 (at%) bulk metallic glass alloy was prepared by using copper mould casting. The thermal stability of 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.

引用

页码：29 / 32