The investigation of gas turbine blade failures requires an interdisciplinary approach calling for expertise in gas turbine design, operation and metallurgy. The object of this paper is to show, in the context of blading problems, the interrelationship between design, operation, maintenance, and the operational envelope. This paper presents case studies dealing with a variety of failure modes. The treatment focuses on practical troubleshooting of blading problems augmented, in some cases, by the use of analytical tools.

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