TY - JOUR
T1 - Abnormally enhanced diamagnetism in Al-Zn-Mg alloys
AU - Nishimura, Katsuhiko
AU - Matsuda, Kenji
AU - Lee, Seungwon
AU - Nunomura, Norio
AU - Shimano, Tomoki
AU - Bendo, Artenis
AU - Watanabe, Katsumi
AU - Tsuchiya, Taiki
AU - Namiki, Takahiro
AU - Toda, Hiroyuki
AU - Yamaguchi, Masatake
N1 - Funding Information:
This work has been supported by Hisaharu Ame Research Support Fund, Center for Advanced Materials Research and International Collaboration , University of Toyama, and Technology Foundation and JST Collaboration Research Based on Industrial Demand.
Publisher Copyright:
© 2018 Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019/2/5
Y1 - 2019/2/5
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jallcom.2018.10.037
DO - 10.1016/j.jallcom.2018.10.037
M3 - Article
AN - SCOPUS:85054468243
VL - 774
SP - 405
EP - 409
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -