Failure analysis of labyrinth pins of an aeroengine
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive InfoField | Value | |
Title |
Failure analysis of labyrinth pins of an aeroengine
|
|
Creator |
Venkataswamy, MA
Parameswara, MA Keshab, Barai Sujata, M Bhaskaran, TA Bhaumik, SK |
|
Subject |
Aeronautics (General)
Chemistry and Materials (General) |
|
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.
|
|
Publisher |
National Aerospace Laboratories
|
|
Date |
2003
|
|
Type |
Proj.Doc/Technical Report
NonPeerReviewed |
|
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.
|
|
Relation |
http://nal-ir.nal.res.in/9774/
|
|