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利用X射线衍射技术、差示扫描量热分析技术和透射电子显微镜研究了非晶态Cu56Zr44合金的结构及其等温退火条件下的晶化过程.实验结果表明,非晶态Cu56Zr44合金在室温下的短程结构类似于硬球无规密堆积分布.在703K过冷液相区内等温退火时发现,当退火时间为3min时,晶化产物主要为Cu8Zr3相;当退火时间为6min时,Cu8Zr3
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关键词:
- 非晶态 /
- Cu56Zr44合金 /
- 结构 /
- 等温退火
The microstructure and crystallization process of an amorphous Cu56Zr44 alloy at isothermal annealing were studied by using the X-ray diffraction, differential scanning calorimetry and transmission electron micrograph techniques. The experimental results seem to show that the short-range order of amorphous Cu56Zr44 alloy at room temperature is of hard sphere random dense packing. It is found that the crystallization products of amorphous Cu56Zr44 alloy annealed at 703K within its supercooled liquid range is mainly Cu8Zr3 phase in an annealing time of 3min, and when the time is 6min, Cu8Zr3 phase disappears completely and Cu10Zr7 phase precipitates a lot, while if the time is longer than 30min, several kinds of phases such as Cu10Zr7, CuZr2 and Cu8Zr3 will form. Based on the above the diffusion mechanism of amorphous Cu56Zr44 alloy at isothermal annealing is presented.-
Keywords:
- amorphous /
- Cu56Zr44 alloy /
- structure /
- isothermal annealing
计量
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- 被引次数: 0
物理学报. 2001, 50(11): 2192-2197.
doi: 10.7498/aps.50.2192.
非晶态Cu56Zr44合金的结构及其等温退火晶化过程的研究
- 收稿日期: 2001-04-18
- 刊出日期: 2001-11-20
摘要: 利用X射线衍射技术、差示扫描量热分析技术和透射电子显微镜研究了非晶态Cu56Zr44合金的结构及其等温退火条件下的晶化过程.实验结果表明,非晶态Cu56Zr44合金在室温下的短程结构类似于硬球无规密堆积分布.在703K过冷液相区内等温退火时发现,当退火时间为3min时,晶化产物主要为Cu8Zr3相;当退火时间为6min时,Cu8Zr3
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关键词:
- 非晶态 /
- Cu56Zr44合金 /
- 结构 /
- 等温退火
English Abstract
STUDY ON MICROSTRUCTURE AND CRYSTALLIZATION OF AMORPHOUS Cu56Zr44 ALLOY BY MEANS OF ISOTHERMAL ANNEALING
- Received Date:
18 April 2001
- Published Online:
20 November 2001
Abstract: The microstructure and crystallization process of an amorphous Cu56Zr44 alloy at isothermal annealing were studied by using the X-ray diffraction, differential scanning calorimetry and transmission electron micrograph techniques. The experimental results seem to show that the short-range order of amorphous Cu56Zr44 alloy at room temperature is of hard sphere random dense packing. It is found that the crystallization products of amorphous Cu56Zr44 alloy annealed at 703K within its supercooled liquid range is mainly Cu8Zr3 phase in an annealing time of 3min, and when the time is 6min, Cu8Zr3 phase disappears completely and Cu10Zr7 phase precipitates a lot, while if the time is longer than 30min, several kinds of phases such as Cu10Zr7, CuZr2 and Cu8Zr3 will form. Based on the above the diffusion mechanism of amorphous Cu56Zr44 alloy at isothermal annealing is presented.
-
Keywords:
- amorphous /
- Cu56Zr44 alloy /
- structure /
- isothermal annealing
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