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Solidified microstructure evolution of Mn-Sb near-eutectic alloy under high magnetic field conditions

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Abstract

Mn-90.8 wt%Sb alloys were solidified without and with high magnetic fields to investigate the effects of high magnetic fields on the structure evolution of the alloys. It was found that there were only MnSb/Sb eutectics without any primary phase in the alloy at 0 T, whereas a small amount of primary MnSb dendrites appeared in the MnSb/Sb eutectic matrix when the magnetic flux density was 4.4 T. In magnetic fields of 6.6, 8.8, and 11.5 T, both of two primary phases, i.e., MnSb and Sb, occurred in the matrix. In addition, the volume fraction of these two primary phases increased with increasing magnetic flux density. In magnetic fields of 8.8 and 11.5 T, primary MnSb dendrites aligned parallel to the magnetic field direction and gathered at the edge of the specimens. In contrast, primary Sb dendrites gathered in the center region of the specimens.

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Authors and Affiliations

  1. Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 100036, China

    Qiang Wang, Ao Gao & Tie Liu

  2. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, Shanxi, 710072, China

    Feng Liu

  3. Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 100036, China

    Chao Zhang & Jicheng He

Authors
  1. Qiang Wang
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  2. Ao Gao
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  3. Tie Liu
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  4. Feng Liu
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  5. Chao Zhang
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  6. Jicheng He
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Correspondence to Qiang Wang.

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Wang, Q., Gao, A., Liu, T. et al. Solidified microstructure evolution of Mn-Sb near-eutectic alloy under high magnetic field conditions. Journal of Materials Research 24, 2331–2337 (2009). https://doi.org/10.1557/jmr.2009.0271

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  • DOI: https://doi.org/10.1557/jmr.2009.0271

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