ISIS Neutron and Muon Source Data Journal

Abnormally enhanced diamagnetism of Al-Zn-Mg alloys

Abstract: We measured temperature and time dependences of magnetization of Al-1.0%Zn-4.2%Mg (ZM14), Al-2.6%Zn-3.2%Mg (ZM33), and Al-4.1%Zn-1.1%Mg (ZM41) (at.%) alloys after various periods of natural aging and peak-aged heat treatments. Abnormally 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 ZM33 and ZM41 were found to largely alter in natural aging, while that of ZM14 little changed. Since zero-field muSR is quite sensitive to the local magnetism, we would like to study electronic structure (local diamagnetism) of Zn-vacancy pairs/Zn-Mg-vacancy clusters. The results provide important information for industry to understand the complex precipitation phenomena of Al-Zn-Mg alloys and thus improve mechanical properties.

Principal Investigator: Professor Katsuhiko Nishimura
Experimenter: Professor Kenji Matsuda
Experimenter: Dr Isao Watanabe
Experimenter: Dr Seungwon Lee
Experimenter: Dr Teiichiro Matsuzaki
Experimenter: Dr Takahiro Namiki

DOI: 10.5286/ISIS.E.RB1970000

ISIS Experiment Number: RB1970000

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Katsuhiko Nishimura et al; (2019): Abnormally enhanced diamagnetism of Al-Zn-Mg alloys, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1970000

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