Failure analysis of counter shafts of a centrifugal pump

Das, Goutam and Sinha, A N and Mishra, Suman K and Bhattacharya, D K (1999) Failure analysis of counter shafts of a centrifugal pump. Engineering Failure Analysis, 6 (4). pp. 267-276.

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An analysis of the premature failure of two counter shafts used in centrifugal pumps for lifting slurry has been carried out. Chemical analysis, microstructural characterisation, fractography, hardness measurement, tensile and Charpy impact tests were used for the analysis. The chemical compositions for the shafts were as per recommendation. The microstructure of one of the shafts was ferritic–pearlitic and its mechanical properties were inferior to the recommended values. For the other shaft the microstructure was tempered bainite; although the impact energy satisfied the specification, the other properties (hardness, UTS) were inferior. It was concluded that the improper heat treatment was the prime cause for the premature failure of the shafts.

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Fatigue; Heat treatment; Machinery failures; Shafts
Divisions:Material Science and Technology
ID Code:374
Deposited On:10 Dec 2009 21:16
Last Modified:14 Dec 2011 13:00
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