期刊
SCRIPTA MATERIALIA
卷 58, 期 7, 页码 529-532出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2007.11.012
关键词
atom probe tomography (APT); electron microscopy; dispersion strengthening; core/shell precipitates; Al alloy
We demonstrate a way of producing monodisperse Al-3(LiScZr) core/shell inclusions using solid-state reactions. A uniform distribution of particles with a Li- and Sc-rich core surrounded by Li-rich shell a few nanometers thick with Zr segregating at the core/shell interface can be made reproducibly by exploiting kinetic and thermodynamic parameters. This approach to generating precipitate distributions can be applied to a range of alloys and could lead to new types of dispersion-strengthened materials. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
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