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

研究成果: ジャーナルへの寄稿学術誌査読

17 被引用数 (Scopus)


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.

ジャーナルMaterials Characterization
出版ステータス出版済み - 12月 2019

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学


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