Failure analysis of steam turbine blade

Madan, M and Suresh Kumar, M and Venkataswamy, MA and Sujata, M and Parameswara, MA and Bhaumik, SK (2005) Failure analysis of steam turbine blade. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

The steam turbine blade had failed by fatigue. The fatigue crack had initiated at the blade root T-joint fillet. Fatigue appears to be of high cycle – low stress type. From the evidences, the most probable reason for fatigue crack initiation appears to be presence of nonmetallic inclusions in the blade material and/or excessive clearance between the blade guiding rib on the disc and the blade root.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Steam turbine blade;fatigue;inclusion;excessive clearance
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 Nov 2011 10:20
Last Modified: 14 Nov 2011 10:20
URI: http://nal-ir.nal.res.in/id/eprint/10000

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