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arXiv · 1712.04102

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

Y. Zhao·W. Du·B. Koe·T. Connolley·S. Irvine·P. K. Allan·C. M. Schlepütz·W. Zhang·F. Wang·D. G. Eskin·J. Mi
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Abstract

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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Y. Zhao, W. Du, B. Koe, T. Connolley, S. Irvine, P. K. Allan, C. M. Schlepütz, W. Zhang, F. Wang, D. G. Eskin, J. Mi. 2017-12-12. 3D Characterisation of the Fe-rich intermetallic phases in Al-5%Cu alloys by synchrotron X-ray microtomography and skeletonisation. https://arxiv.org/abs/1712.04102

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