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

Artenis Bendo; Kenji Matsuda; Adrian Lervik; Tomohito Tsuru; Katsuhiko Nishimura; Norio Nunomura; Randi Holmestad; Calin D. Marioara; Kazuyuki Shimizu; Hiroyuki Toda; Masatake Yamaguchi

doi:10.1016/j.matchar.2019.109958

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

Artenis Bendo^*, Kenji Matsuda, Adrian Lervik, Tomohito Tsuru, Katsuhiko Nishimura, Norio Nunomura, Randi Holmestad, Calin D. Marioara, Kazuyuki Shimizu, Hiroyuki Toda, Masatake Yamaguchi

^*この論文の責任著者

材料デザイン工学科

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

32 被引用数 (Scopus)

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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 η₁₃ orientation relationship between the η-MgZn₂ phase and the Al lattice with the following orientation relationship (0001)_η ∥ (120)_Al and (21¯1¯0)_η ∥ (001)_Al, plate on (120)_Al. The precipitate interfaces were observed and analyzed along two projections 90° 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.

本文言語	英語
論文番号	109958
ジャーナル	Materials Characterization
巻	158
DOI	https://doi.org/10.1016/j.matchar.2019.109958
出版ステータス	出版済み - 2019/12

ASJC Scopus 主題領域

材料科学一般
凝縮系物理学
材料力学
機械工学

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10.1016/j.matchar.2019.109958

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title = "An unreported precipitate orientation relationship in Al-Zn-Mg based alloys",

abstract = "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 η13 orientation relationship between the η-MgZn2 phase and the Al lattice with the following orientation relationship (0001)η ∥ (120)Al and (21¯1¯0)η ∥ (001)Al, plate on (120)Al. The precipitate interfaces were observed and analyzed along two projections 90° 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.",

keywords = "Aluminum alloys, Density functional theory, MgZn, Microstructure, Precipitation, Transmission electron microscopy",

author = "Artenis Bendo and Kenji Matsuda and Adrian Lervik and Tomohito Tsuru and Katsuhiko Nishimura and Norio Nunomura and Randi Holmestad and Marioara, {Calin D.} and Kazuyuki Shimizu and Hiroyuki Toda and Masatake Yamaguchi",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Inc.",

year = "2019",

month = dec,

doi = "10.1016/j.matchar.2019.109958",

language = "英語",

volume = "158",

journal = "Materials Characterization",

issn = "1044-5803",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - An unreported precipitate orientation relationship in Al-Zn-Mg based alloys

AU - Bendo, Artenis

AU - Matsuda, Kenji

AU - Lervik, Adrian

AU - Tsuru, Tomohito

AU - Nishimura, Katsuhiko

AU - Nunomura, Norio

AU - Holmestad, Randi

AU - Marioara, Calin D.

AU - Shimizu, Kazuyuki

AU - Toda, Hiroyuki

AU - Yamaguchi, Masatake

PY - 2019/12

Y1 - 2019/12

N2 - 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 η13 orientation relationship between the η-MgZn2 phase and the Al lattice with the following orientation relationship (0001)η ∥ (120)Al and (21¯1¯0)η ∥ (001)Al, plate on (120)Al. The precipitate interfaces were observed and analyzed along two projections 90° 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.

AB - 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 η13 orientation relationship between the η-MgZn2 phase and the Al lattice with the following orientation relationship (0001)η ∥ (120)Al and (21¯1¯0)η ∥ (001)Al, plate on (120)Al. The precipitate interfaces were observed and analyzed along two projections 90° 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.

KW - Aluminum alloys

KW - Density functional theory

KW - MgZn

KW - Microstructure

KW - Precipitation

KW - Transmission electron microscopy

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U2 - 10.1016/j.matchar.2019.109958

DO - 10.1016/j.matchar.2019.109958

M3 - 学術論文

AN - SCOPUS:85074001680

SN - 1044-5803

VL - 158

JO - Materials Characterization

JF - Materials Characterization

M1 - 109958

ER -

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

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