Influence of some Chemical Elements on SDAS of A357 Alloy

Abstract:

A solidification model of coarsening coefficient for the criterion of secondary dendrite arm spacing has been established in this paper. When the model is applied to aluminum cast alloy, it is found that the model is in good agreement with the experiment results. Experiments and analysis show that addition of some chemical elements is conducive to the refinement of the secondary dendrite arm spacing under the same solidification condition. Different chemical elements have different refining effects, and Zr and Ti have better refining effect on A357 aluminum cast alloy than Cu.

• Periodical: Materials Science Forum (Volume 1020)
• Pages: 3-7
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1020.3
• Online since: February 2021
• Authors: Jie Hua Pan, Ke Zhun He, Meng Wang, Jian Min Zeng*
• Keywords: A357 Alloy, Chemical Element, SDAS, Solidification Model

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