Case 30: Failure of a Second-Stage Turbine Blade in an Aircraft Engine
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Published:2005
Abstract
A second-stage turbine blade in an aircraft engine failed in service, fracturing along a path through the shroud hole. Cracks were also found in the shroud holes of the two adjacent blades. Based on the results of visual examination and SEM fractography, investigators concluded that the fracture and cracks were due to the fretting action of the pins inside the shroud holes.
Failure of a Second-Stage Turbine Blade in an Aircraft Engine, Failure Analysis of Engineering Structures: Methodology and Case Histories, By V. Ramachandran, A.C. Raghuram, R.V. Krishnan, S.K. Bhaumik, ASM International, 2005, p 135–137, https://doi.org/10.31399/asm.tb.faesmch.t51270135
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