On the Effect of the Number of Components on Glass-Forming Ability of Alloys from the Liquid State: Application to the New Generation of Multicomponent Bulk Glasses
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- Desré P. J.
- Laboratoire de Thermodynamique et Physicochimie Métallurgiques, CNRS UMR 5614, Institut National Polytechnique de Grenoble, University Joseph Fourier
書誌事項
- タイトル別名
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- On the Effect of the Number of Componen
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The aim of this work is to demonstrate that an increase of the number of components in a liquid glass forming alloy may contribute to inhibit intermetallic nucleation thus enhancing glass-forming ability. The approach is based on an analysis of the distribution of concentration fluctuations in undercooled multicomponent liquid alloys. It is demonstrated that fluctuations in the undercooled liquid can help intermetallic nucleation in a certain range of temperature and concentration. Addition of one component lowers the probability of creating a nucleant fluctuation by a factor of ten. Furthermore such a stochastic approach shows that, provided the wettability of the embryo on heterophase nucleants remains moderate, heterogeneous nucleation can even be suppressed in the highly undercooled domain of the multicomponent liquid. The possibility of obtaining multicomponent bulk metallic glasses with low cooling rates from high purity liquid alloys, which however contain a significant amount of heterophase nucleants, can be explained by the proposed approach.
収録刊行物
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- Materials Transactions, JIM
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Materials Transactions, JIM 38 (7), 583-588, 1997
社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204247429888
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- NII論文ID
- 130003556940
- 10002453104
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- NII書誌ID
- AA10699969
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- COI
- 1:CAS:528:DyaK2sXmtVKgur0%3D
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- ISSN
- 2432471X
- 09161821
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- NDL書誌ID
- 4270726
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可