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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
Corresponding AuthorZhao, LC()
1999-05-28
Source PublicationACTA MATERIALIA
ISSN1359-6454
Volume47Issue:7Pages:2125-2141
AbstractDetailed 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.
Keywordtransmission electron microscopy (TEM) copper alloy interfaces phase transformation crystallography
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000080811600012
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/109717
Collection中国科学院金属研究所
Corresponding AuthorZhao, LC
Affiliation1.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
Recommended Citation
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.
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