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What is the Process Window for Semi-solid Processing?

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Abstract

In semi-solid processing, the liquid fraction vs temperature is commonly used to define the process window. Conventionally, it is assumed that a freezing range is required for semi-solid processing but recently both high-purity aluminum and binary Al-Si eutectic alloy have been rheo-processed. Here, the kinetics during melting and solidification of pure metal are analyzed, and a comparison between the liquid fraction vs temperature and the liquid fraction vs time is presented. It is found that liquid fraction vs time is a significant criterion for semi-solid processing.

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The authors would like to acknowledge the University of Leicester for financial support.

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Authors and Affiliations

  1. Department of Engineering, University of Leicester, University Road, Leicester, LE1 7RH, U.K.

    Duyao Zhang (Ph.D. Candidate), Hongbiao Dong (Professor) & Helen Atkinson (Professor)

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  1. Duyao Zhang
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  2. Hongbiao Dong
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  3. Helen Atkinson
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Correspondence to Helen Atkinson.

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Manuscript submitted July 24, 2015.

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Zhang, D., Dong, H. & Atkinson, H. What is the Process Window for Semi-solid Processing?. Metall Mater Trans A 47, 1–5 (2016). https://doi.org/10.1007/s11661-015-3185-9

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