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Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al90Fe10 composite
Zhou, F; Luck, R; Lu, K; Lavernia, EJ; Ruhle, M
Corresponding AuthorZhou, F(fzhou@uci.edu)
2002-03-01
Source PublicationPHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES
ISSN0141-8610
Volume82Issue:5Pages:1003-1015
AbstractCrystallization from the amorphous state to metastable crystalline Al6Fe was induced by thermal annealing of mechanically alloyed Al90Fe10 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.
DOI10.1080/01418610110095201
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000174296200009
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/114225
Collection中国科学院金属研究所
Corresponding AuthorZhou, F
Affiliation1.Max Planck Inst Met Res, D-70174 Stuttgart, Germany
2.Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA
3.Chinese Acad Sci, Inst Met Res, State Key Lab Rapidly Solidified Nonequilibrium A, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Zhou, F,Luck, R,Lu, K,et al. Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al90Fe10 composite[J]. PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES,2002,82(5):1003-1015.
APA Zhou, F,Luck, R,Lu, K,Lavernia, EJ,&Ruhle, M.(2002).Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al90Fe10 composite.PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES,82(5),1003-1015.
MLA Zhou, F,et al."Amorphous-to-crystalline transformation induced by thermal annealing of a metastable Al90Fe10 composite".PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES 82.5(2002):1003-1015.
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