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In-situ synchrotron X-ray radiography observation of primary Al2Cu intermetallic growth on fragments of aluminium oxide film

Wang, Feng; Eskin, Dmitry; Connolley, Thomas; Wang, Chuangnan; Koe, Billy; King, Andrew; Reinhard, Christina; Mi, Jiawei

Authors

Feng Wang

Dmitry Eskin

Thomas Connolley

Chuangnan Wang

Billy Koe

Andrew King

Christina Reinhard



Abstract

While using synchrotron X-ray radiography for studying ultrasonic melt processing, the growth of the primary Al2Cu intermetallic phase on fragments of aluminium oxide film during solidification of a hypereutectic Al-35% Cu alloy was observed in-situ and in real time with adequate spatial and temporal resolution. This provides the first direct evidence for the nucleation of a primary phase on oxide particles during solidification of real metallic alloys. Comparison of the primary Al2Cu intermetallics grown in the melt with and without fragments of aluminium oxide film reveals considerable refinement, which demonstrates that the enhanced nucleation of a primary phase on oxide particles promotes structure refinement.

Journal Article Type Article
Publication Date Feb 15, 2018
Journal Materials Letters
Print ISSN 0167-577X
Electronic ISSN 1873-4979
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 213
Pages 303-305
APA6 Citation Wang, F., Eskin, D., Connolley, T., Wang, C., Koe, B., King, A., …Mi, J. (2018). In-situ synchrotron X-ray radiography observation of primary Al2Cu intermetallic growth on fragments of aluminium oxide film. Materials letters, 213, (303-305). doi:10.1016/j.matlet.2017.11.090. ISSN 0167-577X
DOI https://doi.org/10.1016/j.matlet.2017.11.090
Keywords Mechanical Engineering; General Materials Science; Mechanics of Materials; Condensed Matter Physics
Publisher URL https://www.sciencedirect.com/science/article/pii/S0167577X17317159?via%3Dihub
Copyright Statement © 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://
creativecommons.org/licenses/by/4.0/).
Additional Information This article is maintained by: Elsevier; Article Title: In-situ synchrotron X-ray radiography observation of primary Al2Cu intermetallic growth on fragments of aluminium oxide film; Journal Title: Materials Letters; CrossRef DOI link to publisher maintained version: http://dx.doi.org/10.1016/j.matlet.2017.11.090; Content Type: article; Copyright: © 2017 The Authors. Published by Elsevier B.V.

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Copyright Statement
© 2017 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://
creativecommons.org/licenses/by/4.0/).





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