Study on the Distribution of G.P.Zones in Al–Zn Alloys

• Osamura Kozo

  Department of Metallurgy, Kyoto University

• Okuda Hiroshi

  Graduate Student, Kyoto University

書誌事項

タイトル別名

• Study on the Distribution of G.P.Zones in Al–Zn Alloys

抄録

Small-angle X-ray scattering intensity was measured for several Al–Zn alloys aged for 60 ks at various temperatures between 293 and 393 K. Scattering intensities were found to obey a scaling rule, when the alloys with the same chemical composition were aged at different temperatures. Under the present aging conditions, G.P.zones had the average radius between 1 and 2 nm, and their average nearest neighbor distance among zones lay in the range between 10 and 25 nm. Both of the size and the distance among zones were minimized at the aging temperature around 350 K in the binary Al–Zn alloys, and they became smaller and shorter with decreasing temperature in the alloys containing by 0.1 at%Mg. The dependence of the inhomogeneous structure containing G. P. zones on the alloy composition and aging temperature could be qualitatively explained in terms of diffusivity of solute atoms and coherency strain around zones. The present study established a universal method for the small-angle scattering intensity analysis to obtain the knowledge on the spatial distribution as well as the volume fraction and the size distribution of G.P.zones.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 25 (10), 672-682, 1984

  社団法人 日本金属学会

キーワード

• aluminum-zinc alloys
• Guinier-Preston zones
• miscibility gap
• spatial distribution of zones
• scaling rule
• small-angle X-ray scattering.

詳細情報

• CRID: 1390001205118719616
• NII論文ID: 130003486113
• DOI: 10.2320/matertrans1960.25.672
• ISSN: 24324701
• ISSN: 00214434
• ISSN: http://id.crossref.org/issn/00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/25/10/25_10_672/_pdf
• 本文言語コード: en
• データソース種別:
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  • Crossref
  • CiNii Articles
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