Crystallization behavior of Zr52Cu18Ni15Al10Ti5 bulk glass with quenched-in crystals

被引：0
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作者：
Bian, Zhan [1 ]
He, Guo [1 ]
Chen, Guo-Liang [1 ]
机构：
[1] Univ. of Sci. and Technol. Beijing, Beijing 100083, China
来源：
Transactions of Nonferrous Metals Society of China (English Edition) | 2000年 / 10卷 / 03期
关键词：
Amorphous alloys - Annealing - Crystallization - Nanostructured materials;
D O I：
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学科分类号：
摘要：
Zr52Cu18Ni15Al10Ti5 bulk glass samples with a diameter of 8 mm prepared by copper mold with water-cooling have a mixing structure of amorphous phase and quenched-in crystals. By isothermal annealing at different temperatures, the crystallization process of the glass alloy is shown to be a multi-staged crystallization reaction as follows: Am+quenched-in crystals&rarrAm'+cellular phase+(Zr, Ti)-Al&rarrAm'+cellular phase+(Zr, Ti)-Al+(Zr, Ti)2(Cu, Ni). Morphology of the quenched-in crystals changes from dot or dendritic phase in the as-cast bulk glass to cellular phase at different annealing states. The residual region surrounded by the cellular phase has a mixing structure of nano-scale phase and amorphous phase.
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页码：345 / 348
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