Local chemical ordering within the incubation period as a trigger for nanocrystallization of a highly supercooled Ti-based liquid

doi:10.1016/j.matdes.2018.07.013

CORC > 金属研究所 > 中国科学院金属研究所

	Local chemical ordering within the incubation period as a trigger for nanocrystallization of a highly supercooled Ti-based liquid
	Wang, Z 1; Chen, CL ; Ketov, SV ; Akagi, K ; Tsarkov, AA ; Ikuhara, Y 5; Louzguine-Luzgin, DV
刊名	MATERIALS & DESIGN
	2018-10-15
卷号	156 页码:504-513
关键词	Nucleation Supercooled liquid Metallic glass Chemical inhomogeneity Energy barrier
ISSN号	0264-1275
DOI	10.1016/j.matdes.2018.07.013
英文摘要	In the present work we study nanocrystallization of the Ti50Ni23Cu22Sn5 alloy within the supercooled liquid region by using a state-of-the-art experimental technique with elemental mapping at near-atomic resolution especially focusing on the incubation period which is still poorly understood from both the theoretical and experimental viewpoint. Molecular dynamics (MD) simulation results performed for the Ti55Ni45 liquid acting as a simplified model system of the (Ti,Sn)(55)(Ni,Cu)(45) alloy illustrate the process of nucleation and provide some additional suggestions. The experiment and MD results indicate formation of nanometer-range chemical rearrangements which are supposed to reduce the energy barrier in the complex energy landscape finally leading to a high density of homogeneously nucleating crystallites after the completion of a macroscopically observed incubation period. (C) 2018 Published by Elsevier Ltd.
学科主题	Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000441422300048
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79900]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan 2.South China Univ Technol, Sch Mech & Automot Engn, Natl Engn Res Ctr Near Net Shape Forming Metall M, 381 Wushan Rd, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 4.Austrian Acad Sci, Erich Schmid Inst Mat Sci, A-8700 Leoben, Austria 5.Tsarkov, Andrey A.] Natl Univ Sci & Technol MISiS, Moscow 119049, Russia 6.Univ Tokyo, Inst Engn Innovat, Tokyo 1138656, Japan
推荐引用方式 GB/T 7714	Wang, Z,Chen, CL,Ketov, SV,et al. Local chemical ordering within the incubation period as a trigger for nanocrystallization of a highly supercooled Ti-based liquid[J]. MATERIALS & DESIGN,2018,156:504-513.
APA	Wang, Z.,Chen, CL.,Ketov, SV.,Akagi, K.,Tsarkov, AA.,...&Louzguine-Luzgin, DV.(2018).Local chemical ordering within the incubation period as a trigger for nanocrystallization of a highly supercooled Ti-based liquid.MATERIALS & DESIGN,156,504-513.
MLA	Wang, Z,et al."Local chemical ordering within the incubation period as a trigger for nanocrystallization of a highly supercooled Ti-based liquid".MATERIALS & DESIGN 156(2018):504-513.