Chinese Journal of Lasers, Volume. 51, Issue 20, 2002302(2024)

Microstructure Mechanism of Stray Grain Formation During Directed Energy Deposition of DD6 Single Crystal Superalloys

Yan Zeng1,2,3, Jingyi Guo1,2, Zheming Fan1,3, Kaichi Xu1,2, and Lei Li1,2、*
Author Affiliations
  • 1School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710129, Shaanxi , China
  • 2United Innovation Center of Reliability of Structure Life for Commercial Aero Engine, Xi'an 710129, Shaanxi , China
  • 3Shenzhen Research Institute, Northwestern Polytechnical University, Shenzhen 518057, Guangdong , China
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    References(33)

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    [30] Lee Y S, Nordin M, Babu S S et al. Influence of fluid convection on weld pool formation in laser cladding[J]. Welding Journal, 93, 292-300(2014).

    [31] Pang H T, Dong H B, Beanland R et al. Microstructure and solidification sequence of the interdendritic region in a third generation single-crystal nickel-base superalloy[J]. Metallurgical and Materials Transactions A, 40, 1660-1669(2009).

    [32] Gebura M, Lapin J. Microsegregation induced inhomogeneity of coarsening of γ′ precipitates in a nickel-based single crystal superalloy[J]. Defect and Diffusion Forum, 300, 826-831(2010).

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    Yan Zeng, Jingyi Guo, Zheming Fan, Kaichi Xu, Lei Li. Microstructure Mechanism of Stray Grain Formation During Directed Energy Deposition of DD6 Single Crystal Superalloys[J]. Chinese Journal of Lasers, 2024, 51(20): 2002302

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    Paper Information

    Category: Laser Additive Manufacturing

    Received: Feb. 26, 2024

    Accepted: Apr. 1, 2024

    Published Online: Oct. 12, 2024

    The Author Email: Lei Li (lileinpu@nwpu.edu.cn)

    DOI:10.3788/CJL240623

    CSTR:32183.14.CJL240623

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