| Zr-Ti-Cu-Ni-Be-Fe大块非晶合金晶化动力学效应 |
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| 引用本文： | 赵德乾,C.H.Shek,汪卫华. Zr-Ti-Cu-Ni-Be-Fe大块非晶合金晶化动力学效应[J]. 金属学报, 2001, 37(7): 754-758 |
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| 作者姓名： | 赵德乾 C.H.Shek 汪卫华 |
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| 作者单位： | 香港城市大学物理及材料科学系,香港;中国科学院物理研究所,北京,100080 |
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| 基金项目： | 香港研究资助局资助项目 City U 1008／99E |
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| 摘 要： | 利用非等温差示扫描量热（DSC）分析方法研究了大块Zr41Ti14Cu12.5Ni2Be22.5Fe8非晶合金中的晶化行为,用Kissinger方程计算其经表现激活能,实验表明,在Zr基大块非晶合金中掺下Fe后,其玻璃转变与晶化行为都与加热速率有关,均具有动力学效应,同时,从昌化反应速率常数的角度讨论了非晶形成能力。
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| 关 键 词： | 大块非晶合金 晶化 动力学效应 |
| 文章编号： | 0412-1961(2001)07-0754-05 |
| 修稿时间： | 2000-12-19 |
CRYSTALLIZATION AND KINETICS OF Zr-Ti-Cu- Ni-Be-Fe BULK METALLIC GLASS |
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| ZHAO Deqian,C. H. Shek. CRYSTALLIZATION AND KINETICS OF Zr-Ti-Cu- Ni-Be-Fe BULK METALLIC GLASS[J]. Acta Metallurgica Sinica, 2001, 37(7): 754-758 |
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| Authors: | ZHAO Deqian C. H. Shek |
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| Abstract: | Differential scanning calorimeter (DSC) was used to investigate apparent activation energy of crystallization of Zr-Ti-Cu-Ni-Be-Fe bulk metallic glass (BMG) by Kissinger equation under non-isothermal condition. The glass transition temperature, Tg, the onset crystallization temperature, Tx, and the crystallization peak temperature, Tpi, of the BMG are found to depend on the heating rate during the continuous heating, suggesting that both glass transition and crystallization have a significant kinetic effect. |
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| Keywords: | bulk amorphous alloy crystallization kinetic effect |
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