Failure analysis of P301 Benfield section centrifugal pump shaft

Madan, M and Venkataswamy, MA and Sujata, M and Bhaumik, SK (2005) Failure analysis of P301 Benfield section centrifugal pump shaft. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

The shaft of the P301 Benfield section centrifugal pump has failed by fatigue. There were multiple fatigue crack initiations at the slot meant for fixing the split locking-ring. Evidences suggest that there were mechanical damages at the fatigue crack initiation sites. The mechanical damages were caused probably due to edge biting of the locking-ring on the shaft. The fatigue cracks had initiated at these stress raisers. The shaft material was found to conform to 17-4 PH steel and there were no metallurgical abnormalities in the material.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Centrifugal pump;shaft; fatigue
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
Depositing User: Mrs Manoranjitha M D
Date Deposited: 23 Aug 2011 10:41
Last Modified: 23 Aug 2011 10:41
URI: http://nal-ir.nal.res.in/id/eprint/9908

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