Cai, B;
Kao, A;
Lee, PD;
Boller, E;
Basevi, H;
Phillion, AB;
Leonardis, A;
(2019)
Growth of β intermetallic in an Al-Cu-Si alloy during directional solidification via machine learned 4D quantification.
Scripta Materialia
, 165
pp. 29-33.
10.1016/j.scriptamat.2019.02.007.
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Abstract
Fe contamination is a serious composition barrier for Al recycling. In Fe-containing Al-Si-Cu alloy, a brittle and plate-shaped β phase forms, degrading the mechanical properties. Here, 4D (3D plus time) synchrotron X-ray tomography was used to observe the directional solidification of Fe-containing Al-Si-Cu alloy. The quantification of the coupled growth of the primary and β phase via machine learning and particle tracking, demonstrates that the final size of the β intermetallics were strongly influenced by the solute segregation and space available for growth whereas the β orientation was controlled by the temperature gradient direction. The work can be used to validate predictive models.
| Type: | Article |
|---|---|
| Title: | Growth of β intermetallic in an Al-Cu-Si alloy during directional solidification via machine learned 4D quantification |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.scriptamat.2019.02.007 |
| Publisher version: | http://doi.org/10.1016/j.scriptamat.2019.02.007 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Al alloys, Intermetallics, Synchrotron X-ray tomography,4D imaging |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10070392 |
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