Failure analysis of stationary blades in a gas turbine compressor

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Moussavi tarshizi Seyed Ebrahim; JAHANGIRI ALI

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Journal: Modeling in Engineering Year:2018 | Volume:16 | Issue:54 Page(s): 351-360

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Information Journal Paper

Title

Failure analysis of stationary blades in a gas turbine compressor

Author(s)

Moussavi tarshizi Seyed Ebrahim | JAHANGIRI ALI | Issue Writer Certificate

Keywords

Failure analysisQ1

ErosionQ2

Stator bladesQ1

airflowQ1

gas turbine compressorQ1

SEM electron microscopeQ1

Abstract

During the GT13D gas turbine overhaul, there have been quasi-cracks in the Stator blades of semi upper-end compressor rows that appeared in the grooves at the point where Stator blades were attached to the roots. Also, due to the same phenomenon, the blade leading edge was damaged in the same area, which caused the replacement of a number of blades. In this paper, it has been tried to investigate these blades from different views and methods such as hardness, material, appearance, surface layers, microstructure, surface quality with SEM electron microscope and. . . The dominant mechanism in Erosion of this blade and the cause of this failure is determined. The results of these studies suggest that the martensitic stainless steel blade type is hardly uniform in all parts, and there are no structural changes indicative of temperature variations. Also, the Erosion and deterioration factor can not be related to the presence of external particles. Studies have shown that the occurrence of the Erosion phenomenon is likely due to the flow of air from the blades

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APA: Copy

Moussavi tarshizi, Seyed Ebrahim, & JAHANGIRI, ALI. (2018). Failure analysis of stationary blades in a gas turbine compressor. JOURNAL OF MODELING IN ENGINEERING, 16(54 ), 351-360. SID. https://sid.ir/paper/359439/en

Vancouver: Copy

Moussavi tarshizi Seyed Ebrahim, JAHANGIRI ALI. Failure analysis of stationary blades in a gas turbine compressor. JOURNAL OF MODELING IN ENGINEERING[Internet]. 2018;16(54 ):351-360. Available from: https://sid.ir/paper/359439/en

IEEE: Copy

Seyed Ebrahim Moussavi tarshizi, and ALI JAHANGIRI, “Failure analysis of stationary blades in a gas turbine compressor,” JOURNAL OF MODELING IN ENGINEERING, vol. 16, no. 54 , pp. 351–360, 2018, [Online]. Available: https://sid.ir/paper/359439/en

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