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Revealing the Heterogeneous Nucleation and Growth Behaviour of Grains in Inoculated Aluminium Alloys During Solidification

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TMS 2019 148th Annual Meeting & Exhibition Supplemental Proceedings

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

An in situ X-ray radiographic study on the grain nucleation and grain growth of inoculated Al–10Cu and Al–20Cu alloys during isothermal melt solidification and directional solidification conditions with constant cooling rates has been carried out. The influence of additional level of inoculation particles, cooling rates, and temperature gradient on the nucleation rate and growth kinetics of grains have been quantitatively studied. The deterministic nature of the heterogeneous nucleation of aluminium grain on inoculant particles is revealed. Numerical microstructure models have been developed to simulate the nucleation and growth behavior of aluminum grains and a good agreement between the experimental results and simulation results have been achieved.

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Acknowledgements

The financial support by The Research Council of Norway and industrial partners, for the PRIMAL project (project number: 236675), is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway

    Yijiang Xu & Yanjun Li

  2. Department of Physics, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway

    Daniele Casari & Ragnvald H. Mathiesen

Authors
  1. Yijiang Xu
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  2. Daniele Casari
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  3. Ragnvald H. Mathiesen
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  4. Yanjun Li
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Correspondence to Yanjun Li .

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    © 2019 The Minerals, Metals & Materials Society

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    Xu, Y., Casari, D., Mathiesen, R.H., Li, Y. (2019). Revealing the Heterogeneous Nucleation and Growth Behaviour of Grains in Inoculated Aluminium Alloys During Solidification. In: TMS 2019 148th Annual Meeting & Exhibition Supplemental Proceedings. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05861-6_154

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