低濃度Al-Zn合金の相分解過程

• 奥田 浩司

  京都大学大学院生

• 長村 光造

  京都大学工学部冶金学教室

書誌事項

タイトル別名

• Phase Decomposition in Dilute Al-Zn Alloys
• テイ ノウド Al Zn ゴウキン ノ ソウ ブンカイ カテイ

抄録

The phase decomposition process of dilute Al-Zn binary alloys aged at 274 K was investigated by means of the small-angle X-ray scattering (SAXS) method. Structural parameters such as radius of gyration R_g, integrated intensity Q, etc. were obtained from the scattering intensity for each specimen. It is found that the aging process at 274 K can be divided into three stages, I, II and III for all specimens studied here. In stage I, where the phase dicomposition developes, R_g lay between 0.3 nm and 0.6 nm. In stage II corresponding to the coarsening process, the 1/3 power law on R_g vs time was observed. R_g lay between 1.5 nm and 2.5 nm in stage III, where slowing down of the coarsening occurred. The scaling rule was successfully applied to the scattering intensity in stages II and III. From the discussion about the scaling behaviour on the basis of two-phase model, the half width of scaled structure function was pointed out to increase depending on volume fraction.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 49 (10), 825-831, 1985

  公益社団法人 日本金属学会

キーワード

• aluminum-zinc alloys
• Guinier-Preston zones
• phase decomposition
• scaling rule
• small-angle X-ray scattering

詳細情報

• CRID: 1390001206486102784
• NII論文ID: 130007340191
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.49.10_825
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• ISSN: http://id.crossref.org/issn/00214876
• NDL書誌ID: 3058414
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3058414
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/49/10/49_10_825/_pdf
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