Failure Analysis of First and Second Stage Gas Turbine Blades

被引:0
|
作者
Hassan Kazempour-Liasi
Ali Shafiei
Zahra Lalegani
机构
[1] Niroo Research Institute (NRI),Metallurgy Department
关键词
Gas turbine; Vanes; Blades; Failure analysis; Superalloys;
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中图分类号
学科分类号
摘要
Failures of vanes and blades of a dual-fueled GE Frame 5001 gas turbine are investigated in the present work. Mechanical tests and metallurgical analysis were performed to identify the mechanisms and causes of the failures. According to visual inspections and microstructural analyses, the failure mode of the blades was determined to be stress-rupture due to high-temperature exposures. The main reason for high-temperature exposure was the gathering and combustion of the fuel in the second stage vanes.
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页码:1673 / 1682
页数:9
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