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	Dislocation structure of non-habit plane of alpha precipitates in a Ti-7.26 wt.% Cr alloy
	Ye, F ; Zhang, WZ
	2010-05-10 ; 2010-05-10
关键词	phase transformations crystallography interface dislocation O-LATTICE ANALYSES INTERPHASE BOUNDARY INTERFACIAL MISFIT CRYSTALLOGRAPHY SYSTEMS PLATES BCC Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering
中文摘要	The dislocation structures of edge facet and end face of proeutectoid alpha precipitates in a P matrix in a Ti-7.26 wt.% Cr alloy were studied using transmission electron microscopy. Two sets of dislocations, which are parallel to the dislocations on the habit plane of the a plate, were observed on the edge facet. The spacing of one set of coarse-spaced dislocations is about 9.4 nm. Their Burgers vector is [100](beta)([2-1-10](x)/3) determined by g (.) b contrast analyses. The spacing of the other set of fine-spaced dislocations is about 1.8 nm. Their Burgers vector possibly is [111]beta/2([11-20](alpha)/3). A dislocation network on the end face is formed by the dislocations on the habit plane and edge facet looping around the alpha plate. Another set of dislocations was observed on the end face at intersections between the dislocations on the habit plane and the coarse-spaced dislocations on the edge facet. Their Burgers vector possibly is [11-1](beta)/2([2-1-1-3](alpha)/6). Based on the observations, a three-dimensional model of the dislocation structure of the a plate was constructed. (c) 2005 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/123456789/20940]
专题	清华大学
推荐引用方式 GB/T 7714	Ye, F,Zhang, WZ. Dislocation structure of non-habit plane of alpha precipitates in a Ti-7.26 wt.% Cr alloy[J],2010, 2010.
APA	Ye, F,&Zhang, WZ.(2010).Dislocation structure of non-habit plane of alpha precipitates in a Ti-7.26 wt.% Cr alloy..
MLA	Ye, F,et al."Dislocation structure of non-habit plane of alpha precipitates in a Ti-7.26 wt.% Cr alloy".(2010).

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