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Effect of copper on fine precipitates at the early stage of aging in Al-Mg-X (X=Si, Ge, Zn) alloys

Matsuda, Kenji; Kawai, Akihiro; Watanabe, Katsumi; Lee, Seungwon; Marioara, Calin Daniel; Wenner, Sigurd; Nishimura, Katsuhiko; Matsuzaki, Teiichiro; Nunomura, Norio; Sato, Tatsuo; Holmestad, Randi; Ikeno, Susumu
Journal article
Submitted version
Åpne
allTEXTandFIGURES_2.pdf (Låst)
Permanent lenke
http://hdl.handle.net/11250/2489307
Utgivelsesdato
2017
Metadata
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  • Publikasjoner fra CRIStin - NTNU [26736]
Originalversjon
Keikinzoku/Journal of Japan Institute of Light Metals. 2017, 67 (5), 186-192.   10.2464/jilm.67.186
Sammendrag
Age-hardenable Al–Mg–Si, Al–Mg–Ge, and Al–Zn–Mg alloys including Cu were investigated by transmission electron microscopy to understand extra diffraction spots that appear in their selected area electron diffraction patterns. These alloys containing Cu exhibit similar extra diffracted spots to each other with diffracted spots or streaks for Al matrix and major precipitates in each alloy. The extra spots were not observed in Cu-free alloys. The initial cluster, which is based on the β″-phase in the Al–Mg–Si alloy, is proposed to be MgSi(/Ge)Mg, CuMgSi(/Ge), AlCuMg, and AlZnMg, while the second clusters, which consist of three initial clusters including anti-phase boundary short-range order, are proposed for Cu-containing alloys.
Utgiver
Nihon Kinzoku Gakkai
Tidsskrift
Keikinzoku/Journal of Japan Institute of Light Metals

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