| Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al(90)Fe(10) composite |
| F. Zhou; R. Luck; K. Lu; E. J. Lavernia; M. Ruhle
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| 2002
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| 发表期刊 | Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties
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| ISSN | 0141-8610
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| 卷号 | 82期号:5页码:1003-1015 |
| 摘要 | Crystallization from the amorphous state to metastable crystalline Al(6)Fe was induced by thermal annealing of mechanically alloyed Al(90)Fe(10) composite powders (where the composition is given in atomic per cent), which consisted of fcc Al nanocrystals in an amorphous matrix. The microstructural evolution and the transformation kinetics were characterized in detail. A thermodynamic analysis of the transformation was given, showing the nature of the polymorphous crystallization in the amorphous composite. The influence of the pre-existing crystals on crystallization was not morphologically distinctive. The observed linear kinetics law behaviour in combination with an Avrami exponent value of 2.7 +/- 0.1 suggest that the growth of a fixed nuclei population at a constant rate in three dimensions governs crystallization. The activation energy for crystallization was found to be close to the activation energy for the diffusion of Fe atoms in Al. |
| 部门归属 | max planck inst met res, d-70174 stuttgart, germany. univ calif irvine, dept chem engn & mat sci, irvine, ca 92697 usa. chinese acad sci, inst met res, state key lab rapidly solidified nonequilibrium a, shenyang 110015, peoples r china.;zhou, f (reprint author), max planck inst met res, d-70174 stuttgart, germany;fzhou@uci.edu
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| 关键词 | Alloys
Amorphization
Kinetics
Glasses
Powders
Phases
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| URL | 查看原文
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/36586
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
F. Zhou,R. Luck,K. Lu,et al. Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al(90)Fe(10) composite[J]. Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties,2002,82(5):1003-1015.
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| APA |
F. Zhou,R. Luck,K. Lu,E. J. Lavernia,&M. Ruhle.(2002).Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al(90)Fe(10) composite.Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties,82(5),1003-1015.
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| MLA |
F. Zhou,et al."Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al(90)Fe(10) composite".Philosophical Magazine a-Physics of Condensed Matter Structure Defects and Mechanical Properties 82.5(2002):1003-1015.
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