The structure and mobility of the intervariant boundaries in 18R martensite in a Cu-Zn-Al alloy

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	The structure and mobility of the intervariant boundaries in 18R martensite in a Cu-Zn-Al alloy
	Zhang, JX ; Zheng, YF ; Zhao, LC
通讯作者	Zhao, LC()
	1999-05-28
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	47 期号:7 页码:2125-2141
摘要	Detailed crystallographic analysis was carried out on the martensitic transformation and the various variant combinations in 18R martensite in a Cu-Zn-Al alloy. The self-accommodation of martensitic shear strain is quite perfect within a variant group, but not effective or even does not exist for variant combinations which belong to different groups. Twenty-three unique variant combinations between 24 martensite variants can be divided into four groups, i.e. reflection twin, 180 degrees rotation twin, 120 degrees rotation twin and 90 degrees rotation twin. TEM and HREM observations show that the A/C boundary is straight, well-defined and perfectly coherent, the A/B boundary is irrational, coherent and gradually curved, and the A/D boundary is stepped. The A/C and A/B boundaries have obvious mobility, and the mobility is not effective for AID boundary. The interplate group boundaries are curved, blurred and immobile. The morphology, structure and mobility of interplate boundary are ail related to the degree of self-accommodation and the misorientation of twin boundary. (C) 1999 Acta Metallurgica Inc. Published by Elsevier Science Ltd. AN rights reserved.
关键词	transmission electron microscopy (TEM) copper alloy interfaces phase transformation crystallography
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000080811600012
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：23[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/321006/109717
专题	中国科学院金属研究所
通讯作者	Zhao, LC
作者单位	1.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Atom Imaging Solids Lab, Shenyang 110015, Peoples R China
推荐引用方式 GB/T 7714	Zhang, JX,Zheng, YF,Zhao, LC. The structure and mobility of the intervariant boundaries in 18R martensite in a Cu-Zn-Al alloy[J]. ACTA MATERIALIA,1999,47(7):2125-2141.
APA	Zhang, JX,Zheng, YF,&Zhao, LC.(1999).The structure and mobility of the intervariant boundaries in 18R martensite in a Cu-Zn-Al alloy.ACTA MATERIALIA,47(7),2125-2141.
MLA	Zhang, JX,et al."The structure and mobility of the intervariant boundaries in 18R martensite in a Cu-Zn-Al alloy".ACTA MATERIALIA 47.7(1999):2125-2141.