Low-temperature hot corrosion fatigue damage mechanism, life model, and corrosion resistance design method of hot section components

被引：0
作者：
Zhao G. [1 ,2 ]
Qi H. [1 ,2 ]
Li S. [1 ,2 ]
Liu Y. [3 ]
Yang X. [1 ,2 ]
Shi D. [1 ,2 ]
Sun Y. [4 ]
机构：
[1] School of Energy and Power Engineering, Beihang University, Beijing
[2] Beijing Key Laboratory of Aero-Engine Structure and Strength, Beijing
[3] Hunan Aviation Powerplant Research Institute, Aero Engine Corporation of China, Hunan, Zhuzhou
[4] Beijing Aeronautical Engineering Technical Research Center, Beijing
来源：
Advances in Mechanics | 2022年 / 52卷 / 04期
关键词：
corrosion fatigue; gas turbine engines; hot corrosion; life model; strength design;
D O I：
10.6052/1000-0992-22-020
中图分类号：
学科分类号：
摘要：
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. © 2022 Advances in Mechanics.
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页码：809 / 851
页数：42
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