An unreported precipitate orientation relationship in Al-Zn-Mg based alloys

被引：32
作者：
Bendo, Artenis [1 ]
Matsuda, Kenji [1 ]
Lervik, Adrian [2 ]
Tsuru, Tomohito [3 ]
Nishimura, Katsuhiko [1 ]
Nunomura, Norio [1 ]
Holmestad, Randi [2 ]
Marioara, Calin D. [4 ]
Shimizu, Kazuyuki [5 ]
Toda, Hiroyuki [5 ]
Yamaguchi, Masatake [3 ]
机构：
[1] Univ Toyama, Grad Sch Sci & Engn, 3190 Gofuku, Toyama 9308555, Japan
[2] Norwegian Univ Sci & Technol NTNU, Dept Phys, N-7491 Trondheim, Norway
[3] Japan Atom Energy Agcy, Tokai, Ibaraki 3191195, Japan
[4] SINTEF Ind, Mat & Nanotechnol, N-7965 Trondheim, Norway
[5] Kyushu Univ, Dept Mech Engn, Fukuoka, Fukuoka 8190395, Japan
来源：
MATERIALS CHARACTERIZATION | 2019年 / 158卷
基金：
日本科学技术振兴机构;
关键词：
Aluminum alloys; Precipitation; Microstructure; MgZn2; Transmission electron microscopy; Density functional theory; DECOMPOSITION PROCESSES; HAADF-STEM; BEHAVIOR; ZONES;
D O I：
10.1016/j.matchar.2019.109958
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Characterization of precipitates in Al-Zn-Mg alloys, using a combination of electron diffraction, bright field transmission electron microscopy and atomic scale scanning transmission electron microscopy imaging revealed the presence of an unreported eta(13) orientation relationship between the eta-MgZn2 phase and the Al lattice with the following orientation relationship (0001)(eta) parallel to (120)(Al) and (2110)(eta) parallel to (001)(Al), plate on (120)(Al). The precipitate interfaces were observed and analyzed along two projections 90 degrees to one-another. The precipitate coarsening was through the common thickening ledge mechanism. The ledges were significantly stepped along one lateral direction. An interface relaxation model using density functional theory was carried out to explain the precipitate behavior.
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页数：7
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共 39 条
  • [1] Age hardening response of AA7108A investigated by means of Synchrotron-based X-ray Absorption Spectroscopy (XAS) measurements
    Akuata, Chijioke Kenneth
    Altenbach, Christoph
    Schnatterer, Christian
    Suwanpinij, Piyada
    Saiyasombat, Chatree
    Zander, Daniela
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 747 : 42 - 52
  • [2] THE ORIENTED GROWTH OF PRECIPITATES ON DISLOCATIONS IN AL-ZN-MG .1. EXPERIMENTAL-OBSERVATIONS
    ALLEN, RM
    VANDERSANDE, JB
    [J]. ACTA METALLURGICA, 1980, 28 (09): : 1185 - 1195
  • [3] Precipitates in aluminium alloys
    Andersen, Sigmund J.
    Marioara, Calin D.
    Friis, Jesper
    Wenner, Sigurd
    Holmestad, Randi
    [J]. ADVANCES IN PHYSICS-X, 2018, 3 (01): : 790 - 813
  • [4] [Anonymous], MAT DES
  • [5] Characterisation of structural similarities of precipitates in Mg-Zn and Al-Zn-Mg alloys systems
    Bendo, Artenis
    Maeda, Tomoyoshi
    Matsuda, Kenji
    Lervik, Adrian
    Holmestad, Randi
    Marioara, Calin D.
    Nishimura, Katsuhiko
    Nunomura, Norio
    Toda, Hiroyuki
    Yamaguchi, Masatake
    Ikeda, Ken-ichi
    Homma, Tomoyuki
    [J]. PHILOSOPHICAL MAGAZINE, 2019, 99 (21) : 2619 - 2635
  • [6] Atomic scale HAADF-STEM study of η′ and η1 phases in peak-aged Al-Zn-Mg alloys
    Bendo, Artenis
    Matsuda, Kenji
    Lee, Seungwon
    Nishimura, Katsuhiko
    Nunomura, Norio
    Toda, Hiroyuki
    Yamaguchi, Masatake
    Tsuru, Tomohito
    Hirayama, Kyosuke
    Shimizu, Kazuyuki
    Gao, Hongye
    Ebihara, Kenichi
    Itakura, Mitsuhiro
    Yoshida, Tomoo
    Murakami, Satoshi
    [J]. JOURNAL OF MATERIALS SCIENCE, 2018, 53 (06) : 4598 - 4611
  • [7] GP-zones in Al-Zn-Mg alloys and their role in artificial aging
    Berg, LK
    Gjonnes, J
    Hansen, V
    Li, XZ
    Knutson-Wedel, M
    Waterloo, G
    Schryvers, D
    Wallenberg, LR
    [J]. ACTA MATERIALIA, 2001, 49 (17) : 3443 - 3451
  • [8] Reduced temperature (22-100°C) ageing of an Mg-Zn alloy
    Buha, J.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 492 (1-2): : 11 - 19
  • [9] An atomic scale structural investigation of nanometre-sized η precipitates in the 7050 aluminium alloy
    Chung, Tsai-Fu
    Yang, Yo-Lun
    Shiojiri, Makoto
    Hsiao, Chien-Nan
    Li, Wei-Chih
    Tsao, Cheng-Si
    Shi, Zhusheng
    Lin, Jianguo
    Yang, Jer-Ren
    [J]. ACTA MATERIALIA, 2019, 174 : 351 - 368
  • [10] DEGISCHER HP, 1980, Z METALLKD, V71, P231
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