航空发动机用粉末高温合金及制备技术研究进展

Research Progress in Powder Metallurgy Superalloys and Manufacturing Technologies for Aero-Engine Application

本文概述了我国粉末高温合金及制备技术的研究进展。在粉末制备方面,重点介绍了Ar气雾化制粉技术关键因素,包括设备、雾化过程、粒度控制、O含量控制、粉末形貌控制和夹杂控制等。针对涡轮盘件制备技术,总结了双性能涡轮盘、双合金整体叶盘技术和等温锻造模具用材料的研究进展。此外,还介绍了在粉末高温合金高通量实验和表征以及蠕变行为等方面的研究进展。结合当前航空发动机、3D打印等高端工程用材料重大需求,对我国粉末高温合金制备技术和发展方向进行了展望。

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.