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	Nucleation of Ni-Fe alloy near the spinodal
	Lue, Y. J. ; Chen, M. ; Yang, H. ; Yu, D. Q.
	2010-05-07 ; 2010-05-07
关键词	nucleation and growth spinodal decomposition molecular dynamics simulations Ni-Fe alloy CRYSTAL NUCLEATION MOLECULAR-DYNAMICS PHASE-SEPARATION DENSITY-FLUCTUATIONS CRYSTALLIZATION LIQUID SIMULATIONS METALS SYSTEM Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering
中文摘要	In molecular dynamics simulations, "non-classical" nucleation around the spinodal in Fe-Ni alloys is observed by controlling the composition. With increasing Fe concentration, metastable body-centered cubic (bcc) clusters are formed during pre-crystallization under the influence of the spinodal, and then grow into face-centered cubic (fcc)-ordered critical nuclei. When the composition reaches 75 at.% Fe, this transformation is suppressed and the bcc, rather than fcc, symmetry dominates the structure of critical nuclei, a typical nucleation behavior near the spinodal. Further increase in the Fe concentration depresses nucleation below the spinodal temperature. As a consequence, two transient bcc phases characterized by high and low densities appear upon reaching the critical size. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights, reserved.
语种	英语 ; 英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD ; OXFORD ; THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/15850]
专题	清华大学
推荐引用方式 GB/T 7714	Lue, Y. J.,Chen, M.,Yang, H.,et al. Nucleation of Ni-Fe alloy near the spinodal[J],2010, 2010.
APA	Lue, Y. J.,Chen, M.,Yang, H.,&Yu, D. Q..(2010).Nucleation of Ni-Fe alloy near the spinodal..
MLA	Lue, Y. J.,et al."Nucleation of Ni-Fe alloy near the spinodal".(2010).

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