Failure analysis of labyrinth pins of an aeroengine
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
Failure analysis of labyrinth pins of an aeroengine
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| Creator |
Venkataswamy, MA
Parameswara, MA Keshab, Barai Sujata, M Bhaskaran, TA Bhaumik, SK |
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| Subject |
Aeronautics (General)
Chemistry and Materials (General) |
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| Description |
A labyrinth ring and 55 pins pertaining to an aeroengine, which completed 741:29/242:02 hrs in service were sent to the laboratory for analysis. Dye penetrant examination revealed crack like indications in 9 pins out of the 55 pins at about 4-5 mm from the pin-head. Examination of these pins under the Scanning Electron Microscope revealed a circumferential deformation/depression marks at this location. Metallographic examination showed that out of these 9 pins, one pin had a fatigue crack of length of about 450 m.
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| Publisher |
National Aerospace Laboratories
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| Date |
2003
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| Type |
Proj.Doc/Technical Report
NonPeerReviewed |
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| Identifier |
Venkataswamy, MA and Parameswara, MA and Keshab, Barai and Sujata, M and Bhaskaran, TA and Bhaumik, SK (2003) Failure analysis of labyrinth pins of an aeroengine. Project Report. National Aerospace Laboratories, Bangalore.
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| Relation |
http://nal-ir.nal.res.in/9774/
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