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题名: Special segregation of Cu on the habit plane of lath-like beta' and QP2 precipitates in Al-Mg-Si-Cu alloys
作者: Weng, YY;  Jia, ZH;  Ding, LP;  Du, K;  Duan, HC;  Liu, Q;  Wu, XZ
通讯作者: Jia, ZH (reprint author), Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China.
发表日期: 2018-7-1
学科主题: Nanoscience & Nanotechnology;  Materials Science, Multidisciplinary;  Metallurgy & Metallurgical Engineering
关键词: AG ALLOY;  METASTABLE PHASES;  INTERFACE;  BOUNDARY;  SEQUENCE;  ATOMS;  ZN;  Q'
摘要: 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.
资助者: Fundamental 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]
英文摘要: 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.
部门归属: [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
刊名: SCRIPTA MATERIALIA
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.imr.ac.cn/handle/321006/79281
ISSN号: 1359-6462
语种: 英语
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
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.

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