Muon Spin Relaxation Study of Solute–Vacancy Interactions During Natural Aging of Al-Mg-Si-Cu Alloys

Wenner, Sigurd; Marioara, Calin Daniel; Nishimura, Katsuhiko; Matsuda, Kenji; Lee, Seungwon; Namiki, Takahiro; Watanabe, Isao; Matsuzaki, Teiichiro; Holmestad, Randi
Journal article, Peer reviewed
Accepted version
Thumbnail
View/Open
URI
http://hdl.handle.net/11250/2607766
Date
2019
Metadata
Show full item record
Collections
Original version
Metallurgical and Materials Transactions. A. 2019, 50 3446-3451.   10.1007/s11661-019-05285-y
Abstract
Muon spin relaxation has the unique ability to detect very low concentrations of vacancies and vacancy–solute complexes in solids. In this work, we investigate quaternary Al-Mg-Si-Cu alloys and show that after quenching to room temperature from 848 K (575 °C), vacancies gradually become incorporated into clusters in the Al matrix. The total amount of vacancies in the material increases as small vacancy-rich clusters are formed, which is the opposite of the behavior in Cu-free Al-Mg-Si alloys.
Publisher
Springer Verlag
Journal
Metallurgical and Materials Transactions. A