纳米颗粒强化高温合金研究进展-中国材料进展

文章信息/Info

作者:: 闵师领; 王莉; 李佳声; 刘静; 于明涵; 岑宇欣; 石奥杰; 刘旭航; 董加胜; 楼琅洪; 1.中国科学院金属研究所师昌绪先进材料创新中心，辽宁沈阳 110016 2.中国科学技术大学材料科学与工程学院，辽宁沈阳 110016

Author(s):: MIN Shiling; WANG Li; LI Jiasheng; LIU Jing; YU Minghan; CEN Yuxin; SHI Aojie; LIU Xuhang; DONG Jiasheng; LOU Langhong; 1. Shi changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China 2. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China

Keywords:: nano-particles; superalloys; dispersion strengthened; microstructure evolution; introduction method; manufacturing process

摘要:: 航空发动机推重比与重型燃气轮机功率的不断提升，对先进高温合金的性能与稳定性提出了更加严苛的要求。纳米颗粒具有高强度、高硬度与优异的热稳定性，因此在高温合金中引入纳米颗粒可有效强化高温合金使其满足日益增长的性能需求。然而，如何选取合适的纳米颗粒类型、纳米颗粒的引入方式及成形工艺，以克服纳米颗粒易团聚、难均匀弥散分布问题，提高纳米颗粒与合金基体的界面结合强度以及提升纳米颗粒的高温稳定性，是当下纳米颗粒强化高温合金发展的关键。从纳米颗粒类型、引入方式及成形工艺等方面概述了国内外研究现状，展望了未来纳米颗粒强化高温合金在优化第二相、绿色制备以及增强界面结合等方面的发展方向。

Abstract:: Advanced superalloys present severe challenges in terms of performance and stability with continuous improvement of the thrust-to-weight ratio of aero engines and power of industry gas turbines. Nano-particles possess high strength, high hardness and excellent thermal stability. Therefore, the introduction of nano-particles into superalloys has great potential to strengthen superalloys, thereby meeting the increasing performance demands. Presently, the essential of the development of nano-particles reinforced superalloys is the selection of nano-particles type, introduction method and manufacturing process. The main targets are to overcome the difficulties associated with the aggregation and dispersion distribution of nano-particles, improve the interfacial bonding strength between nano-particles and superalloy matrix, and enhance the high-temperature stability of nano-particles. This study briefly reviews the current research progress of nano-particles reinforced superalloys from types, introduction method and manufacturing process, and further prospects the future research in optimization of nano-particles, eco-friendly preparation, and enhancement of interfacial bonding.