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Correlation Between Radial Growth Rate of Cylindrical Solid and Time in Melt

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Abstract

The radial growth of δ-phase in Fe-0.15%C-0.8%Mn steel during solidification was in-situ observed under a high-temperature confocal scanning laser microscope (HTCSLM). The correlation between radial growth rate of cylindrical solid and time in melt was investigated, and the expression was deduced. The results indicate that the radius of cellular δ-phase rapidly enlarges at the beginning, and then the enlargement amplitude gradually declines. The variation of radial growth rate vs time is the same for each cellular δ-phase, and the radial growth rate of δ-phase rapidly declines to about 1.5 μm/s within 10 s at a cooling rate of 2. 7 K/min, after that the growth rate slowly falls. The experimental data of the radial growth rate of cellular δ-phase are consistent with the calculation results for Fe-0.15%C-0.8%Mn steel.

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Authors and Affiliations

  1. School of Materials Science and Engineering, Liaoning University of Technology, Jinzhou, Liaoning, 121001, China

    Shu-ying Chen (Doctor, Associate Professor), Guo-wei Chang, Xu-dong Yue, Qing-chun Li & Guang-can Jin

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  1. Shu-ying Chen
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  2. Guo-wei Chang
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  3. Xu-dong Yue
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  4. Qing-chun Li
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  5. Guang-can Jin
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Correspondence to Shu-ying Chen.

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Foundation Item: Item Sponsored by National Natural Science Foundation of China (50874060); Program of Excellent Talents of Liaoning Province in University of China (LR201019)

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Chen, Sy., Chang, Gw., Yue, Xd. et al. Correlation Between Radial Growth Rate of Cylindrical Solid and Time in Melt. J. Iron Steel Res. Int. 20, 1–6 (2013). https://doi.org/10.1016/S1006-706X(13)60188-0

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  • DOI: https://doi.org/10.1016/S1006-706X(13)60188-0

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