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mfeku_29_2_161.pdf | 2.35 MB | Adobe PDF | 見る/開く |
タイトル: | On the Precipitation in Aluminium-Zinc-Magnesium Alloys |
著者: | MURAKAMI, Yotaro KOMATSU, Shinya NAGATA, Koji |
発行日: | 10-Jun-1967 |
出版者: | Faculty of Engineering, Kyoto University |
誌名: | Memoirs of the Faculty of Engineering, Kyoto University |
巻: | 29 |
号: | 2 |
開始ページ: | 161 |
終了ページ: | 196 |
抄録: | The precipitation characteristics in Al-5wt% Zn-2wt% Mg alloys with or without a trace addition of Ag, Cu or Cr have been studied as the function of solution temperature and time, quenching temperature and medium, and pre-aging between quenching and artificial aging mainly by electrical resistivity measurement and tensile test. Imperfections such as sub-boundaries still remained after incomplete solution treatment, though it is particularly the case when added Cr, influence remarkably the following precipitation. Vacancy-solute clusters, which could be formed during or immediately after quenching, can act as precipitation nuclei of η' intermediate phase and, therefore, influence considerably the age-hardening at higher temperatures. Pre-aging and small additions of Ag have also many favorable effects on higher temperature aging. |
URI: | http://hdl.handle.net/2433/280689 |
出現コレクション: | Vol.29 Part 2 |
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