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Journal of Materials Science
Erschienen in: Journal of Materials Science 6/2018

11.12.2017 | Metals

Atomic scale HAADF-STEM study of η′ and η 1 phases in peak-aged Al–Zn–Mg alloys

verfasst von: Artenis Bendo, Kenji Matsuda, Seungwon Lee, Katsuhiko Nishimura, Norio Nunomura, Hiroyuki Toda, Masatake Yamaguchi, Tomohito Tsuru, Kyosuke Hirayama, Kazuyuki Shimizu, Hongye Gao, Kenichi Ebihara, Mitsuhiro Itakura, Tomoo Yoshida, Satoshi Murakami

Erschienen in: Journal of Materials Science | Ausgabe 6/2018

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Abstract

The microstructures of precipitates in Al–Zn–Mg alloys in peak-aged condition have been studied using scanning transmission electron microscope. The same thermo-mechanical treatment was applied in all alloys. Investigation of peak-aged samples revealed that the most commonly found phases were η′ and η 1 with their respective habit planes on {111}Al and {100}Al. η′ phases under [110]Al were analyzed and compared with η′ structure models. Furthermore, a close inspection of η 1 phase as the second most found precipitate revealed that it incorporates an anti-phase resembling boundary, not observed in other orientation relationships that precipitates create with Al matrix, in addition, differences in matrix-precipitate interfaces between η′/η 2 and η 1 phases were noticed. This paper addresses the first part to the analysis of η′ phase. Next part is extended to the analysis of the η 1 phase.
Vorheriger Artikel Deformation and damage of sintered low-porosity aluminum under planar impact: microstructures and mechanisms
Nächster Artikel Heterogeneous nucleation of pure gold on highly smooth ceramic substrates and the influence of lattice misfit and cooling rate

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Metadaten
Titel
Atomic scale HAADF-STEM study of η′ and η 1 phases in peak-aged Al–Zn–Mg alloys
verfasst von
Artenis Bendo
Kenji Matsuda
Seungwon Lee
Katsuhiko Nishimura
Norio Nunomura
Hiroyuki Toda
Masatake Yamaguchi
Tomohito Tsuru
Kyosuke Hirayama
Kazuyuki Shimizu
Hongye Gao
Kenichi Ebihara
Mitsuhiro Itakura
Tomoo Yoshida
Satoshi Murakami
Publikationsdatum
11.12.2017
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 6/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-017-1873-0

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