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Lee, H. S.; Han, S. Z.; Lee, H. M.; Lee, Z. H. |
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Publication |
Coarsening Behavior of L1$_2$ Precipitates in Melt-Spun Al-Ti-V-Zr Alloys |
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Journal Article |
Pages |
1993 |
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Abstract |
Materials Science and Engineering A |
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Corporate Author |
Mater. Sci. Eng. A |
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163 |
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1 |
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Summary Language |
81-90 |
Series Editor |
volume fraction
high-strength
kinetics
dependence
nucleation
growth
do22 |
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Abbreviated Series Title |
Aging studies of two melt-spun Al-2at.% (Ti,V,Zr) alloys showed that the would-be metastable L1(2) Al3(Ti,V,Zr) precipitates did not transform to stable D0(23) ones, and the average radius is 5-7 nm and the interparticle spacing is 20-40 nm at 698 K up to 400 h. The coarsening rate of spherical Al3(Ti0.2V0.4Zr0.4) precipitates was observed to be five times as fast as that of Al3(Ti0.1V0.4Zr0.5) precipitates. The coarsening behavior in both alloys obeyed the Lifshitz-Slyozov-Wagner (LSW) prediction well. Owing to the low coarsening rate and the high thermal stability of the precipitated phase, Al-Ti-V-Zr systems show promise as bases for high-temperature high-strength Al alloys. |
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Times Cited: 10
Article
English
Cited References Count: 44
Lf639 |
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refbase @ user |
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1328 |
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