軽金属
Online ISSN : 1880-8018
Print ISSN : 0451-5994
ISSN-L : 0451-5994
研究論文
Al–Mg–X(X=Si, Ge, Zn)合金の時効初期における微細析出物に対するCuの影響
松田 健二河合 晃広渡邊 克己李 昇原Marioara Calin D.Wenner Sigurd西村 克彦松崎 禎市郎布村 紀男里 達雄Holmestad Randi池野 進
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2017 年 67 巻 5 号 p. 186-192

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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.

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© 2017 一般社団法人軽金属学会
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