Characterizing the interactions of edge dislocation dipole in hexagonal close packed Ti-Al alloys

IMR OpenIR

	Characterizing the interactions of edge dislocation dipole in hexagonal close packed Ti-Al alloys
	Wu, Hao; Leng, Jinfeng; Teng, Xinying; Su, Tao; Li, Qinggang; Li, Jinkai; Wu, Junyan; Xu, Daokui; Zhu, Yongchang
	2019-02-15
Source Publication	MATERIALS & DESIGN
ISSN	0264-1275
Volume	164
Abstract	The aim of the present work is to elucidate the interaction between dislocation dipoles decorated by trace addition of solute atoms in themodelmaterial of as-annealed coarse-grained Ti-3Al (weight percent, wt%) alloys. The morphology, activity, structure, strain field, and interaction of dislocation cores were systematically characterized. Theoretical predictions of equilibrium distribution of edge dislocation dipoles presenting an angle of 45 degrees relative to each other were experimentally demonstrated. More importantly, we observed for the first time the 45 degrees-rotating of strain fields around the dislocation core along a clockwise direction for stress equilibrium which is driven by the dislocation-dislocation interactions. (C) 2018 Elsevier Ltd. This is an open access article under the CC BY-NC-ND license.
Keyword	Titanium alloys Homogenization/solutionization Strengthening Crystal defects High-resolution electron microscopy (HREM)
Indexed By	SCI
Language	英语
WOS ID	WOS:000455433700014
Publisher	ELSEVIER SCI LTD
Citation statistics	Cited Times:4[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/81370
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Wu, Hao,Leng, Jinfeng,Teng, Xinying,et al. Characterizing the interactions of edge dislocation dipole in hexagonal close packed Ti-Al alloys[J]. MATERIALS & DESIGN,2019,164.
APA	Wu, Hao.,Leng, Jinfeng.,Teng, Xinying.,Su, Tao.,Li, Qinggang.,...&Zhu, Yongchang.(2019).Characterizing the interactions of edge dislocation dipole in hexagonal close packed Ti-Al alloys.MATERIALS & DESIGN,164.
MLA	Wu, Hao,et al."Characterizing the interactions of edge dislocation dipole in hexagonal close packed Ti-Al alloys".MATERIALS & DESIGN 164(2019).

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