Investigation of HPT rotor blades
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
Investigation of HPT rotor blades
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| Creator |
Suresh Kumar, M
Venkataswamy, MA Sujata, M Bhaumik, SK |
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| Subject |
Aeronautics (General)
Chemistry and Materials (General) |
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| Description |
During routine inspection, two unused HPTR blades (blade No. 2522F and 6865C) showed indications of surface defects. These blades were sent to the laboratory for analyzing the nature of defects by non-destructive methods. Stereo-binocular and scanning electron microscopic examinations revealed that both the blades have coating defects in the form of pinholes in the coating as well as defective regions devoid of coating associated with micro-cracks. The observed defects are stress concentrators and potential sites for fatigue crack initiation. Hence it is recommended that these blades be rejected.
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| Publisher |
National Aerospace Laboratories
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| Date |
2006
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| Type |
Proj.Doc/Technical Report
NonPeerReviewed |
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| Identifier |
Suresh Kumar, M and Venkataswamy, MA and Sujata, M and Bhaumik, SK (2006) Investigation of HPT rotor blades. Project Report. National Aerospace Laboratories, Bangalore.
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| Relation |
http://nal-ir.nal.res.in/9857/
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