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Special segregation of Cu on the habit plane of lath-like beta' and QP2 precipitates in Al-Mg-Si-Cu alloys
Weng, YY; Jia, ZH; Ding, LP; Du, K; Duan, HC; Liu, Q; Wu, XZ; Jia, ZH (reprint author), Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China.
2018-07-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume151Pages:33-37
AbstractCu segregation at the habit plane of lath-like beta' and QP2 precipitates for the over-aged Al-Mg-Si-Cu alloys were investigated by atomic resolution high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). An even number spacing of Cu segregation (d(Cu)) was found in the habit plane of the lath-like beta' and QP2 precipitates, which is caused by the strong interaction between the segregated Cu atoms and the Si atoms within the precipitates. The Cu segregation at habit plane of these precipitates can accommodate the lattice misfit that exists between beta' and alpha-Al matrix. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; Cu segregation at the habit plane of lath-like beta' and QP2 precipitates for the over-aged Al-Mg-Si-Cu alloys were investigated by atomic resolution high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM). An even number spacing of Cu segregation (d(Cu)) was found in the habit plane of the lath-like beta' and QP2 precipitates, which is caused by the strong interaction between the segregated Cu atoms and the Si atoms within the precipitates. The Cu segregation at habit plane of these precipitates can accommodate the lattice misfit that exists between beta' and alpha-Al matrix. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
description.department[weng, yaoyao ; jia, zhihong ; ding, lipeng ; liu, qing] chongqing univ, coll mat sci & engn, chongqing 400044, peoples r china ; [weng, yaoyao ; jia, zhihong ; ding, lipeng ; liu, qing] chongqing univ, electron microscopy ctr, chongqing 400044, peoples r china ; [du, kui ; duan, huichao] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [wu, xiaozhi] chongqing univ, coll phys, chongqing 401331, peoples r china
KeywordAg Alloy Metastable Phases Interface Boundary Sequence Atoms Zn Q'
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationFundamental Research Funds for the Central Universities of China [106112017CDJQI308822]; Major Project of Development and Application of Chongqing Science and Technology [cstc2015yykfC50001]; Foundation for Innovative Research Groups of the National Natural Science Foundation of China [51421001]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79281
Collection中国科学院金属研究所
Corresponding AuthorJia, ZH (reprint author), Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China.
Recommended Citation
GB/T 7714
Weng, YY,Jia, ZH,Ding, LP,et al. Special segregation of Cu on the habit plane of lath-like beta' and QP2 precipitates in Al-Mg-Si-Cu alloys[J]. SCRIPTA MATERIALIA,2018,151:33-37.
APA Weng, YY.,Jia, ZH.,Ding, LP.,Du, K.,Duan, HC.,...&Jia, ZH .(2018).Special segregation of Cu on the habit plane of lath-like beta' and QP2 precipitates in Al-Mg-Si-Cu alloys.SCRIPTA MATERIALIA,151,33-37.
MLA Weng, YY,et al."Special segregation of Cu on the habit plane of lath-like beta' and QP2 precipitates in Al-Mg-Si-Cu alloys".SCRIPTA MATERIALIA 151(2018):33-37.
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