Transmission electron microscopy study of stacking faults and their interaction with pyramidal dislocations in deformed Mg

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	Transmission electron microscopy study of stacking faults and their interaction with pyramidal dislocations in deformed Mg
	B. Li ; P. F. Yan ; M. L. Sui ; E. Ma
刊名	Acta Materialia
	2010
卷号	58 期号:1 页码:173-179
关键词	Dislocations Stacking fault Magnesium TEM plastic-deformation vacancy clusters hcp metals alloys irradiation simulation stability zinc
ISSN号	1359-6454
中文摘要	We present transmission electron microscopy (TEM) observations of stacking faults (SFs) and their interactions with pyramidal dislocations, in plastically deformed polycrystalline pure magnesium. We have observed well-defined fringes its well as streaking in diffraction patterns, typical of SFs. The basal SFs are decorated by a large number of dark speckles, which are created by the interaction with pyramidal dislocations that have both < c > and < a > components as revealed by our contrast analysis. The SFs do not appear to result from the splitting of unit dislocations, as the SFs are relatively wide and no dislocation nodes were observed. By tilting the specimen systematically inside TEM, the SFs and the associated dislocations in Mg are found to exhibit a rich variety of features in terms of their morphology and diffraction contrast. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
原文出处	://WOS:000272405600018
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/31196]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Li,P. F. Yan,M. L. Sui,et al. Transmission electron microscopy study of stacking faults and their interaction with pyramidal dislocations in deformed Mg[J]. Acta Materialia,2010,58(1):173-179.
APA	B. Li,P. F. Yan,M. L. Sui,&E. Ma.(2010).Transmission electron microscopy study of stacking faults and their interaction with pyramidal dislocations in deformed Mg.Acta Materialia,58(1),173-179.
MLA	B. Li,et al."Transmission electron microscopy study of stacking faults and their interaction with pyramidal dislocations in deformed Mg".Acta Materialia 58.1(2010):173-179.