摘要
对于沿海地区或海洋环境中使用的航空发动机来说,由于高温、机械载荷和盐雾环境的共同作用,热腐蚀疲劳破坏是影响其热端部件服役寿命的主要因素.本文对热端部件低温热腐蚀疲劳损伤机理、寿命模型和防腐蚀设计方法进行了总结、归纳及评述,提出了未来的研究趋势与发展方向.首先介绍航空发动机热端部件的热腐蚀疲劳故障案例、损伤演化机理;其次,重点分析了低温腐蚀疲劳寿命的唯象模型、损伤力学模型、断裂力学模型以及机器学习模型;再次,对几种代表性的考虑腐蚀演化不同阶段的分段式腐蚀疲劳全寿命模型进行综述,还分析指出了腐蚀疲劳全寿命模型的发展趋势;从次,对航空发动机材料选择、零件制造、结构强度设计和外场运行维护不同阶段的抗腐蚀方法进行了综述.最后,对增材制造零部件的热腐蚀疲劳问题以及无损检测技术、人工智能等与热腐蚀疲劳研究的结合进行了展望.
Hot corrosion fatigue is the key factor affecting the service life of hot section components due to combined effect of high temperature,mechanical load and salt spray atmosphere for gas turbine engines serving in coastal areas or marine environments.In this paper,the damage mechanism,life model and corrosion resistant design methods of low temperature hot corrosion fatigue are summarized and commented.Meanwhile,the research trend and direction in the future are put forward.Firstly,the hot corrosion fatigue failure cases and damage evolution mechanism of gas turbine engine hot section components are described.Next,the phenomenological model,damage mechanics model,fracture mechanics model and machine learning model of low temperature corrosion fatigue life were analyzed.Moreover,several representative segmented full-life corrosion fatigue models considering different stages of corrosion evolution are reviewed,and the development trend of full-life corrosion fatigue models is also put forward.Finally,the corrosion resistant design methods for gas turbine engine material selection,parts manufacturing,structural strength design and operation and maintenance are summarized.In addition,the hot corrosion fatigue in additive manufacturing and the application of nondestructive testing technology and artificial intelligence in hot corrosion fatigue research are also prospected.
作者
赵高乐
齐红宇
李少林
刘扬
杨晓光
石多奇
孙燕涛
ZHAO Gaole;QI Hongyu;LI Shaolin;LIU Yang;YANG Xiaoguang;SHI Duoqi;SUN Yantao(School of Energy and Power Engineering,Beihang University,Beijing 100191,China;Beijing Key Laboratory of Aero-Engine Structure and Strength,Beijing 100191,China;Hunan Aviation Powerplant Research Institute,Aero Engine Corporation of China,Zhuzhou 412002,Hunan,China;Beijing Aeronautical Engineering Technical Research Center,Beijing 100076,China)
出处
《力学进展》
EI
CSCD
北大核心
2022年第4期809-851,共43页
Advances in Mechanics
基金
国家自然科学基金资助项目(51975027)。
关键词
发动机
热腐蚀
腐蚀疲劳
疲劳寿命模型
强度设计
gas turbine engines
hot corrosion
corrosion fatigue
life model
strength design
