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Home > Archive>Volume 53, Issue 8, 2024 >2152-2155. DOI:10.12442/j.issn.1002-185X.20230847
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Gradient Microstructure of K4169 Superalloy Prepared by Low Voltage Pulsed Magnetic Field Combined with Direc-tional Solidification
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Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Fund Project:

National Key Research and Development Program of China (2018YFA0702900); National Science and Technology Major Project (J2019-VII-0002-0142); National Natural Science Foundation of China (51831007)

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    Abstract:

    The influence of the low voltage pulsed magnetic field (LVPMF) on the microstructure transition of K4169 superalloy was investigated. The gradient microstructure of K4169 superalloy composed of columnar grains, coarse grains, and fine grains was prepared through the combined method of LVPMF with directional solidification, which provided a new approach for the preparation of superalloy with gradient microstructure. The distribution of the Lorentz force and flow field under LVPMF effect was simulated, and therefore the microstructure transition mechanism was revealed. Results show that the microstructure transition should be attributed to the coupling effects of the Lorentz force and forced convection.

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[Li Yingju, Zhang Kuiliang, Zhu Cheng, Zheng Ce, Feng Xiaohui, Yang Yuansheng. Gradient Microstructure of K4169 Superalloy Prepared by Low Voltage Pulsed Magnetic Field Combined with Direc-tional Solidification[J]. Rare Metal Materials and Engineering,2024,53(8):2152~2155.]
DOI：10.12442/j. issn.1002-185X.20230847

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History
  • Received:December 28,2023
  • Revised:March 27,2024
  • Adopted:April 16,2024
  • Online: August 09,2024
  • Published: August 08,2024

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