Failure Analysis of parts of an aeroengine

Rangaraju, R and Bhaumik, SK and Bhaskaran, TA and Venkataswamy, MA and Parameshwara, MA and Sujata, M (2002) Failure Analysis of parts of an aeroengine. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

Four failed components of an aeroengine were sent to the laboratory for determining the modes of fracture. Examination of the failed components revealed that ring sealing expansion and support ring sealing front have fractured at high temperatures under static overload, whereas the adaptor special G1 ‘A’ failed by fatigue due to deficiency in welding. The sub-assembly ring sealing exhaust cone front was found free from any mechanical damages except for some minor rub marks at one location on the knurled region. A thin layer of metal deposition was observed over a sector of this ring.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aeroengine;superalloy;overheating;fatigue;weld defect
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Mrs Manoranjitha M D
Date Deposited: 14 Jul 2011 16:28
Last Modified: 14 Jul 2011 16:28
URI: http://nal-ir.nal.res.in/id/eprint/9396

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