Direct measurement of precipitate induced strain in an Al-Zn-Mg-Cu alloy with aberration corrected transmission electron microscopy

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	Direct measurement of precipitate induced strain in an Al-Zn-Mg-Cu alloy with aberration corrected transmission electron microscopy
	Ying, XR; Du, YX; Song, M; Lu, N; Ye, HQ; Song, M (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
	2016-11-01
发表期刊	MICRON
ISSN	0968-4328
卷号	90 页码:18-22
摘要	Precipitates and their associated strain fields significantly influence mechanical properties and, consequently, the industrial performance of aluminum alloys. In this work, we present a direct measurement of strains induced by eta' and eta precipitates in an Al-Zn-Mg-Cu alloy using aberration-corrected high resolution transmission electron microscopy and quantitative strain analysis. The results demonstrate that the strain induced by precipitates in the Al-Zn-Mg-Cu alloy shows significant tensile strains perpendicular to the longitudinal direction of the precipitate discs on the side of the discs and along the longitudinal direction at both ends of the eta' and eta precipitates. This strain field can be described by an equivalent dislocation model, in which the lattice mismatch between the precipitate and the matrix is equivalent to a series of dislocation pairs along the precipitate/matrix interfaces. (C) 2016 Elsevier Ltd. All rights reserved.
部门归属	[ying, x. r. ; song, m. ; lu, n. ; ye, h. q.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [du, y. x.] northeast yucai sch, senior high sect, 41 century rd, shenyang 110179, peoples r china
关键词	Aberration Corrected Electron Microscopy Quantitative Electron Microscopy Strain Analysis Precipitates Aluminum Alloys
学科领域	Microscopy
资助者	Special Funds for the Major State Basic Research Projects of China [2012CB619503]; Natural Sciences Foundation of China [51390473]
收录类别	sci
语种	英语
WOS记录号	WOS:000386418900004
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/76202
专题	中国科学院金属研究所
通讯作者	Song, M (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Ying, XR,Du, YX,Song, M,et al. Direct measurement of precipitate induced strain in an Al-Zn-Mg-Cu alloy with aberration corrected transmission electron microscopy[J]. MICRON,2016,90:18-22.
APA	Ying, XR,Du, YX,Song, M,Lu, N,Ye, HQ,&Song, M .(2016).Direct measurement of precipitate induced strain in an Al-Zn-Mg-Cu alloy with aberration corrected transmission electron microscopy.MICRON,90,18-22.
MLA	Ying, XR,et al."Direct measurement of precipitate induced strain in an Al-Zn-Mg-Cu alloy with aberration corrected transmission electron microscopy".MICRON 90(2016):18-22.