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3D Characterisation of the Fe-rich intermetallic phases in Al-5%Cu alloys by synchrotron X-ray microtomography and skeletonisation

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arxiv 1712.04102 v1 pith:I2DZR5O4 submitted 2017-12-12 cond-mat.mtrl-sci

Y. Zhao , W. Du , B. Koe , T. Connolley , S. Irvine , P. K. Allan , C. M. Schlepütz , W. Zhang
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F. Wang D.G. Eskin J. Mi
This is my paper · ORCID
classification cond-mat.mtrl-sci
keywords alloyalloysfe-phasesal-5fe-richintermetallicmicrotomographyphases
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Synchrotron X-ray microtomography and skeletonisation method were used to study the true 3D network structures and morphologies of the Fe-rich intermetallic phases in Al-5.0%Cu-0.6%Mn alloys with 0.5% and 1.0% Fe. It was found that, the Fe-phases in the 1.0%Fe alloy have node lengths of 5-25m; while those in the 0.5%Fe alloy are of 3-17 m. The Fe-phases in the 1.0%Fe alloy also developed sharper mean curvature with wider distribution than those in the 0.5%Fe alloy. Combining SEM studies of the deeply-etched samples, the true 3D structures of 4 different type Fe-phases in both alloys are also revealed and demonstrated.

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