首页|镍基高温合金表面冲击强化机制及应用研究进展

镍基高温合金表面冲击强化机制及应用研究进展

扫码查看
原文链接
  • 万方数据
  • 维普
为满足不断攀升的两机涡轮动力系统的快速发展,表面冲击强化技术在涡轮转子用高温合金表面强化的应用及相应机制的研究受到了广泛关注.然而,高温合金表面硬化层在高温服役环境下的回复、再结晶行为难以避免,由此引起的表面强韧化、抗疲劳效果的退化,成为制约表面冲击强化技术在先进高温合金关键部件深入应用的瓶颈.本文总结了近年来镍基高温合金表面冲击强化机制及应用研究进展,分析了表面冲击强化对镍基高温合金表面强韧性及抗疲劳的作用规律,探究了高温合金表面冲击硬化层在高温及长期时效过程中的显微组织、微结构演化及其对高温稳定性的作用机理.以期为发展镍基高温合金表面冲击强化、提高两机涡轮转子疲劳抗力提供基础.
Research Progress on Surface Impact Strengthening Mechanisms and Application of Nickel-Based Superalloys
There has been rapid development in the turbine power systems of aeroengines and gas turbines.Consequently,the application of surface impact strengthening technology for the surface strengthening of superalloys used in turbine rotors and its corresponding mechanisms have attracted wide attention.However,it is difficult to prevent the recovery and recrystallization of the surface hardened layer of superalloys serviced at high temperatures.This leads to the degradation of both the surface strengthening/toughening and fatigue resistance.This is the main hurdle restricting the wide application of surface impact strengthening technology for key components of advanced superalloys.In this paper,the progress made in surface impact strengthening mechanisms and the applications of nickel-based su-peralloys in recent years are summarized.The effect of surface impact strengthening on the surface strength,toughness,and fatigue resistance of nickel-based superalloys is analyzed.The evolution of the microstructure of the hardened surface of the alloys during long-term aging at high temperatures,and its effect on high-temperature stability are explored.The paper aims to provide essential and important infor-mation for developing surface impact strengthening mechanisms of nickel-based superalloys and improv-ing the fatigue resistance of turbine rotors of aeroengines and gas turbines.

nickel-based superalloysurface strengthening technologyanti-fatigue manufacturinghardened layerhigh temperature stability of microstructure and property

王磊、刘梦雅、刘杨、宋秀、孟凡强

展开 >

东北大学 材料各向异性与织构教育部重点实验室 沈阳 110819

中山大学 中法核工程与技术学院 珠海 519000

镍基高温合金 表面强化处理 抗疲劳制造 硬化层 组织和性能高温稳定性

国家重点研发计划项目国家重点研发计划项目国家科技重大专项项目国家自然科学基金国家自然科学基金

2022YFB37051012022YFB3705102J2019-VI-0020-0136U170825351571052

2023

10.11900/0412.1961.2023.00134

金属学报
中国金属学会

金属学报

CSTPCDCSCD北大核心
影响因子：0.925
ISSN：0412-1961
年,卷(期)：2023.59(9)
  • 10