1. Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China 2. High Temperature Material Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China 3. Beijing Key Laboratory of New Superalloy Materials, Central Iron and Steel Research Institute, Beijing 100081, China 4. AECC Additive Manufacturing Technology Innovation Center, Beijing 100095, China
Cite this article:
ZHANG Guoqing,ZHANG Yiwen,ZHENG Liang,PENG Zichao. Research Progress in Powder Metallurgy Superalloys and Manufacturing Technologies for Aero-Engine Application. Acta Metall Sin, 2019, 55(9): 1133-1144.
The research progress in powder metallurgy (PM) superalloys and manufacturing technologies are reviewed. The key control factors of Ar gas atomization (AA) powder manufacturing are introduced, including the aspects of the equipment development, atomization process, particle size, oxygen content, powder morphology and inclusion control. For the turbine disk manufacturing technology, the research progress of dual-property turbine disk, dual-alloy integral turbine wheel technologies and isothermal forging die materials are summarized. In the field of basic research, high-throughput experiment, advanced characterization and creep behavior of PM superalloys were introduced. According to the current major demand for aero-engines and 3D printing, the future of PM superalloys manufacturing technology is prospected.
Fund: Supported by National Key Research and Development Program of China(2017YFB0305800,2016YFB0701404);National Natural Science Foundation of China(51434007);Ministry of Industry and Information Technology of China /Horizon 2020 China-European Union Aeronautical Science & Technology Cooperation Program(MJ-2015-H-G-104);UK Diamond Light Source(EE10597)
Fig.6 Particle trajectory of powder with different particle diameters
Fig.7 Schematic of particle image velocimetry (PIV) experiment (a) and contour of velocity vector (b)
Fig.8 Droplet size with different atomized pressures (water atomization physical simulation)
Fig.9 Relationship between gas content and superalloy powder particle size
Fig.10 Morphology of Ar gas atomized superalloy powders
Fig.11 Macrostructure of dual-alloy auxiliary power unit (APU) turbine wheel
Fig.12 Calculated and experimentally measured creep test behavior at 700 ℃ for FGH96 alloy
Fig.13 High throughput experiment of microstructure evolution from powder to bulk superalloy (a) [52] and fast characterization of minor phase change by synchrotron X-ray diffraction (b) (Tcentre——centre temperature, Tγ'——γ' solvus temperature, TIM——incipient melting temperature, TL——liquidus temperature)
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