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Abstract

The failure of HP turbine blades in a low bypass turbofan engine was analyzed to determine the root cause. Forensic and metallurgical investigations were conducted on all failed blades as well as failed downstream components. It was found that one of the blades fractured in the dovetail region, causing extensive damage throughout the turbine. Remedial measures were suggested to prevent such failures in the future.

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R. K. Mishra, Thomas Johney, K. Srinivasan, Failure Analysis of HP Turbine Blades in a Low Bypass Turbofan Engine, Handbook of Case Histories in Failure Analysis, Vol 3, Edited By Larry Berardinis, ASM International, 2019, p 29–36, https://doi.org/10.31399/asm.fach.v03.c9001756

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