重庆科技大学学报（自然科学版）2025，Vol.27Issue(2)：46-50,79,6.DOI:10.19406/j.issn.2097-4531.2025.02.006
某F级重型燃气轮机尾筒TBC基材裂纹特性分析
An Analysis of the Crack Characteristics of the Base Material in the Tail Cylinder TBC of Certain F-Class Heavy Gas Turbines
摘要
Abstract
The tail cylinder is an important part of the heavy gas turbine.Based on the in-depth analysis of the tail cylinder structure and material of an F-class heavy gas turbine,this paper applies the advanced scanning electron microscopy energy spectral analysis technology,which can accurately obtain the composition information of the main elements of the tail cylinder matrix and the thermal barrier coating(TBC).This study can not only carry out an ex-haustive microscopic analysis of the causes of tail tube crack,but also reveal the microstructural changes of tail tube material in high temperature working environment.After thorough analysis and research,it is determined that the main cause of this gas turbine tail tube is thermal fatigue crack.The formation of thermal fatigue cracks is closely related to the temperature changes experienced by the tail tube during the operation.This temperature fluctuation leads to the stress concentration inside the material,then leading to the generation and expansion of cracks.关键词
燃气轮机/尾筒/热障涂层/裂纹Key words
gas turbines/tail cylinder/thermal barrier coating/crack引用本文复制引用
郭小庆,丁勇能..某F级重型燃气轮机尾筒TBC基材裂纹特性分析[J].重庆科技大学学报（自然科学版）,2025,27(2):46-50,79,6.基金项目
中国华电集团公司科技项目"9FA燃机部分资本性部件自主化修复研究"(HDPIKJ13-02-08) （HDPIKJ13-02-08）
