Solute micro-segregation profile and associated precipitation in cast Al-Mg-Si alloy

Artenis Bendo*, Jonathan Fellowes, Matthew Smith, Masoud Moshtaghi, Zelong Jin, Kenji Matsuda, Zhongyun Fan, Xiaorong Zhou

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

1 被引用数 (Scopus)

抄録

The micro-segregation in the as-cast AA6082 aluminium alloy were investigated across a range of length scales using a combination of analytical electron microscopes. It is found that the micro-segregation bands form an inter-connected network following grain boundaries and inter-dendritic channels. The micro-segregation can be divided into major micro-segregation and minor micro-segregation; the former is mainly on the grain boundaries consisting of iron-bearing intermetallic; the latter occurs both, along the grain boundaries and inter-dendritic channels, consisting mainly of Mg and Si alloying elements. The atomic-scale imaging reveals that in the minor-segregation bands, the supersaturated solute concertation has formed precipitates that had either nucleated heterogeneously on the dislocation network or homogeneously inside the aluminium matrix. The heterogeneously nucleated precipitates in the dislocation lines are composed of a mixture of phases down the precipitation sequence meanwhile, the homogenously grown ones are discrete phases that appear at the early stages of the precipitation sequence.

本文言語英語
ページ(範囲)801-827
ページ数27
ジャーナルPhilosophical Magazine
104
19-20
DOI
出版ステータス出版済み - 2024

ASJC Scopus 主題領域

  • 凝縮系物理学

フィンガープリント

「Solute micro-segregation profile and associated precipitation in cast Al-Mg-Si alloy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル