Failure analysis of left barrel of an aircraft engine |
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Authors: | Rajesh Sharma M. Srinivas |
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Affiliation: | Defence Metallurgical Research Laboratory, Hyderabad 500 058, India |
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Abstract: | This investigation analyses the failure of left barrel used in engine of an aircraft. The barrel was subjected to detailed examination using standard non-destructive and destructive testing methods in order to identify the cause of failure of left barrel. The experimental results include fractography, chemical analysis, coating analysis and optical microstructure. The investigation concludes that failure is caused by the formation of corrosion pits which act as stress raiser and fatigue has assisted in propagation of the crack. |
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