| Crystallization kinetics of amorphous Zr65Cu25Al10 alloy |
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| 作者姓名： | 王焕荣 石志强 王艳 滕新营 叶以富 闵光辉 张均艳 |
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| 作者单位： | 1. Key Laboratory of Liquid Structure and Heredity of Materials，Ministry of Education，Shandong University，Ji′nan 250061，China; 2. College of Resour |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｄｅｖｅｌｏｐｍｅｎｔｏｆｇｌａｓｓｆｏｒｍｉｎｇ ｍｕｌｔｉｃｏｍｐｏ ｎｅｎｔａｌｌｏｙｓｙｓｔｅｍｓｗｉｔｈｖｅｒｙｌｏｗｃｒｉｔｉｃａｌｃｏｏｌｉｎｇｒａｔｅｓｗｉｔｈｉｎ 1～ 10 0Ｋ/ｓｈａｓｏｆｆｅｒｅｄｆｉｒｓｔ
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| 关 键 词： | 结晶 动力学 锆合金 非晶合金 |
Crystallization kinetics of amorphous Zr65Cu25Al10 alloy |
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| WANG Huan rong,SHI Zhi qiang,WANG YanTENG Xin ying,YE Yi fu,MIN Guang hui,ZHANG Jun yan.Crystallization kinetics of amorphous Zr65Cu25Al10 alloy[J].Transactions of Nonferrous Metals Society of China,2002,12(3):462-465. |
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| Authors: | WANG Huan rong SHI Zhi qiang WANG YanTENG Xin ying YE Yi fu MIN Guang hui ZHANG Jun yan |
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| Abstract: | Crystallization behavior of amorphous Zr 65 Cu 25 Al 10 alloy under isothermal annealing condition was investigated by DSC and XRD. It is found that two exothermic peaks appear in the DSC curve of amorphous Zr 65 Cu 25 Al 10 alloy, indicating that the crystallization proceeds through double stage mode. The crystallization process of amorphous Zr 65 Cu 25 Al 10 alloy under isothermal annealing condition is mainly controlled by nucleation and one dimensional growth with the crystallized volume fraction smaller than 70%. With the crystallized volume fraction ranging from 70% to 90%, crystallization process is mainly dominated by the growth of three dimensional pre existing quench in nuclei. And when the crystallized volume fraction reaches above 90%, transient nucleation becomes the master of the crystallization process. |
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| Keywords: | crystallization kinetics amorphous Zr 65 Cu 25 Al 10 alloy DSC Avrami exponent |
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