Abnormally enhanced diamagnetism in Al-Zn-Mg alloys

Katsuhiko Nishimura, Kenji Matsuda, Seungwon Lee, Norio Nunomura, Tomoki Shimano, Artenis Bendo, Katsumi Watanabe, Taiki Tsuchiya, Takahiro Namiki, Hiroyuki Toda, Masatake Yamaguchi

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Temperature and time dependences of magnetization of Al-1.0%Zn-4.2%Mg, Al-2.6%Zn-3.2%Mg, Al-4.1%Zn-1.1%Mg, and Al-5%Zn (at.%) alloys were measured in the range between 10 and 310 K after various periods of natural aging and peak-aged heat treatments. Enhanced diamagnetic contributions on the magnetization were observed for the as-quenched Al-Zn-Mg alloys for the first time. The enhanced diamagnetism observed in Al-2.6%Zn-3.2%Mg and Al-4.1%Zn-1.1%Mg were found to largely alter in natural aging, while that of Al-1.0%Zn-4.2%Mg little changed. After peak-aged heat treatments, the diamagnetism of Al-Zn-Mg was largely reduced. The binary Al-5%Zn showed neither enhanced diamagnetism nor natural aging effect on the magnetization. Isothermal time variations of magnetization of Al-Zn-Mg alloys at 300 K were found to be related with solute-vacancy clustering.

元の言語英語
ページ(範囲)405-409
ページ数5
ジャーナルJournal of Alloys and Compounds
774
DOI
出版物ステータス出版済み - 2 5 2019

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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    Nishimura, K., Matsuda, K., Lee, S., Nunomura, N., Shimano, T., Bendo, A., Watanabe, K., Tsuchiya, T., Namiki, T., Toda, H., & Yamaguchi, M. (2019). Abnormally enhanced diamagnetism in Al-Zn-Mg alloys. Journal of Alloys and Compounds, 774, 405-409. https://doi.org/10.1016/j.jallcom.2018.10.037