Atomistic structure of Cu-containing β" precipitates in an Al-Mg-Si-Cu alloy

被引：61
|
作者：
Li, Kai [1 ,2 ]
Beche, Armand [2 ]
Song, Min [1 ]
Sha, Gang [3 ]
Lu, Xingxu [4 ]
Zhang, Kai [1 ]
Du, Yong [1 ]
Ringer, Simon P. [3 ]
Schryvers, Dominique [2 ]
机构：
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China
[2] Univ Antwerp, Electron Microscopy Mat Sci EMAT, B-2020 Antwerp, Belgium
[3] Univ Sydney, Australian Ctr Microscopy & Microanal, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia
[4] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
来源：
SCRIPTA MATERIALIA | 2014年 / 75卷
基金：
欧洲研究理事会;
关键词：
Aluminum alloys; High-angle annular dark field; High-resolution EDX; Aging; CRYSTAL-STRUCTURE; ELECTRON-DIFFRACTION; ALUMINUM-ALLOY; EXCESS SI; PHASE; ADDITIONS; HARDNESS;
D O I：
10.1016/j.scriptamat.2013.11.030
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The beta '' precipitates in a peak-aged Al-Mg-Si-Cu alloy were measured with an average composition of 28.6Al-38.7Mg-26.5Si-5.17Cu (at.%) using atom probe tomography. High-angle annular dark-field observations revealed that Cu incompletely substitutes for the Mg-1 and Si-3 columns, preferentially for one column in each pair of Si-3. Cu-free Si columns form a parallelogram-shaped network that constitutes the basis of subsequent precipitates in the system, with a = 0.37 nm, b = 0.38 nm, gamma = 113 degrees and c = 0.405 nm. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：86 / 89
页数：4
相关论文
共 50 条
  • [1] A First-Principles Study of the Cu-Containing β" Precipitates in Al-Mg-Si-Cu Alloy
    He, Shaozhi
    Wang, Jiong
    Zhang, Donglan
    Wu, Qing
    Kong, Yi
    Du, Yong
    [J]. MATERIALS, 2021, 14 (24)
  • [2] The structural and compositional evolution of precipitates in Al-Mg-Si-Cu alloy
    Ding, Lipeng
    Jia, Zhihong
    Nie, Jian-Feng
    Weng, Yaoyao
    Cao, Lingfei
    Chen, Houwen
    Wu, Xiaozhi
    Liu, Qing
    [J]. ACTA MATERIALIA, 2018, 145 : 437 - 450
  • [3] Identification of precipitates in 6013 aluminum alloy (Al-Mg-Si-Cu)
    Barbosa, C
    Rebello, JMA
    Acselrad, O
    Dille, J
    Delplancke, JL
    [J]. ZEITSCHRIFT FUR METALLKUNDE, 2002, 93 (03): : 208 - 211
  • [4] Effect of pre-straining on structure and formation mechanism of precipitates in Al-Mg-Si-Cu alloy
    Weng, Yao-yao
    Jia, Zhi-hong
    Ding, Li-peng
    Liao, Jin
    Zhang, Ping-ping
    Xu, Ya-qi
    Liu, Qing
    [J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2022, 32 (02) : 436 - 447
  • [5] Secondary precipitation in an Al-Mg-Si-Cu alloy
    Buha, J.
    Lumley, R. N.
    Crosky, A. G.
    Hono, K.
    [J]. ACTA MATERIALIA, 2007, 55 (09) : 3015 - 3024
  • [6] Observation of precipitates in Al-Mg-Si-Cu alloy by high resolution transmission electron microscopy
    Okumura, I
    Matsuda, K
    Uetani, Y
    Shinagawa, F
    Ikeno, S
    [J]. JAPAN INSTITUTE OF METALS, PROCEEDINGS, VOL 12, (JIMIC-3), PTS 1 AND 2: SOLID - SOLID PHASE TRANSFORMATIONS, 1999, : 205 - 208
  • [7] Cu-segregation at the Q′/α-Al interface in Al-Mg-Si-Cu alloy
    Matsuda, K
    Teguri, D
    Uetani, Y
    Sato, T
    Ikeno, S
    [J]. SCRIPTA MATERIALIA, 2002, 47 (12) : 833 - 837
  • [8] The disordered structure of Q′ and C phases in Al-Mg-Si-Cu alloy
    Ding, Lipeng
    Hu, Hai
    Jia, Zhihong
    Weng, Yaoyao
    Wu, Xiaozhi
    Liu, Qing
    [J]. SCRIPTA MATERIALIA, 2016, 118 : 55 - 59
  • [9] Investigation of grain boundaries in an Al-Mg-Si-Cu Alloy
    Holmestad, Jon
    Ervik, Martin
    Marioara, Calin D.
    Walmsley, John C.
    [J]. ALUMINIUM ALLOYS 2014 - ICAA14, 2014, 794-796 : 951 - +
  • [10] Hexagonal tabular β-phase in Al-Mg-Si-Cu alloy
    Matsuda, K
    Kawabata, T
    Uetani, Y
    Sato, T
    Ikeno, S
    [J]. SCRIPTA MATERIALIA, 2002, 47 (07) : 467 - 471
12345