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Solute clustering and supersaturated solid solution of AlSi10Mg alloy fabricated by selective laser melting.

ABSTRACT: ?-Al grains surrounded by Al-Si eutectic as the substructures in AlSi10Mg alloy fabricated by selective laser melting (SLM) were investigated in detail using three-dimensional atom-probe and transmission electron microscopy. Quantitative analysis of ?-Al revealed (1) the formation of Mg clusters and Mg-Si co-clusters with a density in the order of 1023 /m3 in ?-Al of the as-built state caused by the complicated thermal history, and (2) a supersaturated Si content that significantly exceeded the maximum solubility due to rapid solidification, during the SLM process.

SUBMITTER: Maeshima T

PROVIDER: S-EPMC6370582 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Solute clustering and supersaturated solid solution of AlSi10Mg alloy fabricated by selective laser melting.

Maeshima Takashi T Oh-Ishi Keiichiro K

Heliyon 20190206 2

α-Al grains surrounded by Al-Si eutectic as the substructures in AlSi10Mg alloy fabricated by selective laser melting (SLM) were investigated in detail using three-dimensional atom-probe and transmission electron microscopy. Quantitative analysis of α-Al revealed (1) the formation of Mg clusters and Mg-Si co-clusters with a density in the order of 10<sup>23</sup> /m<sup>3</sup> in α-Al of the as-built state caused by the complicated thermal history, and (2) a supersaturated Si content that signi ...[more]

PMID: 30793055

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