Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11015807 | Journal of Alloys and Compounds | 2019 | 11 Pages |
Abstract
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 310â¯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 300â¯K were found to be related with solute-vacancy clustering.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Katsuhiko Nishimura, Kenji Matsuda, Seungwon Lee, Norio Nunomura, Tomoki Shimano, Artenis Bendo, Katsumi Watanabe, Taiki Tsuchiya, Takahiro Namiki, Hiroyuki Toda, Masatake Yamaguchi,