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ID 15818
Eprint ID
15818
フルテキストURL
著者
Yamada, Masuo Department of Industrial Science
Ohta, Mutsuo Department of Industrial Science
榊原 精 Department of Industrial Science
抄録
A series of small-angle X-ray scattering photographs with monochromated and point focussed copper Ka(1) radiation was taken of a single crystal of an Al-4mass % Cu alloy at the as-quenched state from 823K and at successive stages of ageing at 313K. The crystal was so oriented that the incident direction of the radiation was along [001] axis, and was cooled with liquid nitrogen during the exposure. The pattern of the as-quenched state was homogeneous, but each of the patterns of the aged states consisted of streaks along [100] and [010] directions and a quasi-ring around the trace of the incident beam on the film (even at the shortest ageing time. l6sec). The most intense regions were found in [100], [010] , [100] and [010] directions on the ring. With the progress of the ageing the streaks and the ring became more intense and narrower. The results can be interpreted from points of view of the formation of the GP zones parallel to {100} planes ab initio, the effect of the inter-particle interference on scattering of X-rays, and the growth of the GP zones with the ageing. Guinier radius of the GP zones at each stage can be obtained from intensity change along [110], and the values are reasonably consistent with those obtained from the cross section of the streak. The presence of multi-layer zones, besides the one-layer ones, is suggested from the humps found on several intensity curves along [100] at later stages.
発行日
1986-02-28
出版物タイトル
Memoirs of the School of Engineering, Okayama University
出版物タイトル(別表記)
岡山大学工学部紀要
20巻
2号
出版者
岡山大学工学部
出版者(別表記)
School of Engineering, Okayama University
開始ページ
21
終了ページ
33
ISSN
0475-0071
NCID
AA00733903
資料タイプ
紀要論文
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
mfe