Crystallization Kinetics in Cu64.5Zr35.5 Binary Metallic Glass

摘要：

　　The crystallization kinetics of melt-spun Cu64.5Zr35.5 amorphous alloy ribbons was investigated using differential scanning calorimetry (DSC) at different heating rates.Besides, the Kissinger and isoconversional approaches were used to obtain the crystallization kinetic parameters.As shown in the results, the activation energies for glass transition and crystallization process at the onset, peak and end crystallization temperatures were obtained by means of Kissinger equation to be 577.65 + 34, 539.86 + 54, 518.25 + 20 and 224.84 ± 2 kJ/mol, respectively.The nucleation activation energy Enucleation is greater than grain growth activation energy Egrowth, indicating that the nucleation process is harder than grain growth.The local activation energy Eα decreases in the whole crystallization process, which suggests that crystallization process is increasingly easy.

关键词： Metallic glass Amorphous materials Metals and alloys Crystallization kinetics Activation energy

作者: Qian Gao Zengyun Jian Junfeng Xu Man Zhu

作者单位: School of Materials and Chemical Engineering, Xian Technological University, Xian, Shaanxi 710021, PR China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 233-238

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）