Phase-field study of the effects of the multi-controlling parameters on columnar dendrite during directional solidification in hexagonal materials

The growth of hexagonal columnar dendrite during directional solidification with respect to the multi-controlling parameters such as anisotropy, cooling rate, temperature gradient and orientation angle were investigated by a quantitative phase-field method, respectively. The simulation results show that the increase of anisotropy, cooling rate and temperature gradient can accelerate the solidification velocity of columnar dendrites. Among them, the cooling rate has the most significant effect on the solidification velocity of columnar dendrite. In contrast, the solidification velocity of columnar dendrite slows down with the increase of the orientation angle. Meanwhile, the primary dendrite spacing decreases with the increase of cooling rates and temperature gradient, and the primary dendrite arms are smooth. The primary dendrite spacing increases with the increase of anisotropy and orientation angle, which provides space for the development of secondary dendrite arms. In addition, the effects of cooling rate and temperature gradient on the solid volume fraction were also studied.

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Work Title Phase-field study of the effects of the multi-controlling parameters on columnar dendrite during directional solidification in hexagonal materials
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Open Access
Creators
  1. Yongbiao Wang
  2. Mingguang Wei
  3. Xintian Liu
  4. Cong Chen
  5. Yujuan Wu
  6. Liming Peng
  7. Long-Qing Chen
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. The European Physical Journal E
Publication Date July 2, 2020
Publisher Identifier (DOI)
  1. doi.org/10.1140/epje/i2020-11964-9
Deposited August 10, 2022

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Version 1
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  • Created
  • Updated
  • Added Creator Sandra Elder
  • Added Phase-field study of the effects of the multi-controlling parameters on columnar dendrite during directional solidification in hexagonal materials.pdf
  • Updated Publication Date, License Show Changes
    Publication Date
    • 2020-07
    License
    • https://rightsstatements.org/page/InC/1.0/
  • Published
  • Updated Publisher, Publisher Identifier (DOI), Publication Date Show Changes
    Publisher
    • The European Physical Journal E
    Publisher Identifier (DOI)
    • doi.org/10.1140/epje/i2020-11964-9
    Publication Date
    • 2020-07
    • 2020-07-02
  • Deleted Creator Sandra Elder
  • Added Creator Yongbiao Wang
  • Added Creator Mingguang Wei
  • Added Creator Xintian Liu
  • Added Creator Cong Chen
  • Added Creator Yujuan Wu
  • Added Creator Liming Peng
  • Added Creator Long-Qing Chen
  • Updated