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Orientation evolution of single-crystal superalloys under different solidification interface

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Abstract

The single-crystal superalloys with different deviation angle are prepared by using the liquid metal cooling high-temperature gradient directional solidification furnace, and the orientation evolution of single-crystal superalloys under different solidification interface is studied. The results indicate that the increase of the deviation angle will make the planar interface unstable. With the increase of the solidification rate, the growth direction of the crystal will deviate from the direction of heat flow to the preferred orientation direction. Under the developed dendrite crystal growth, the branches of the dendrite will follow the preferred orientation, nearly free from the effect of the heat flow.

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Acknowledgments

This work was supported by the fund of the State Key Laboratory of Solidification Processing in NWPU (No. SKLSP201408), National Natural Science Foundation of China (Nos. 51331005, 51171151), Projects of Jiang’xi Province Science and Technology Plan (No. KJLD13078), and Natural Science Basic Research Plan in Shaanxi Province of China (No. 2013JQ6003).

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Authors and Affiliations

  1. Engineering Research Center for Magnesium Alloys, Gannan Normal University, Gan’zhou, 341000, People’s Republic of China

    Chubin Yang, Ning Luo & Baojun Han

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

    Chubin Yang, Lin Liu, Jun Zhang & Hengzhi Fu

  3. School of Materials Science and Engineering, Xi’an University of Technology, Xi’an, 710072, People’s Republic of China

    Gang Liu

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  1. Chubin Yang
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  2. Lin Liu
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  3. Ning Luo
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  4. Jun Zhang
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  6. Gang Liu
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Correspondence to Chubin Yang.

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Yang, C., Liu, L., Luo, N. et al. Orientation evolution of single-crystal superalloys under different solidification interface. Appl. Phys. A 117, 1971–1975 (2014). https://doi.org/10.1007/s00339-014-8604-z

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  • DOI: https://doi.org/10.1007/s00339-014-8604-z

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