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Journal of Failure Analysis and Prevention

, Volume 14, Issue 3, pp 303–306 | Cite as

Premature Failure of Ductile Iron Pump Impeller in Cooling Tower System

  • Pankaj Sharma
Case History---Peer-Reviewed
  • 209 Downloads

Abstract

The root cause of corrosion of a pump impeller in a cooling water system is investigated. The impeller material was made of ductile cast iron. The pump failure was encountered after eight months of operation. A detailed visual examination, microstructure examination, and water analysis were carried out to ascertain the probable cause of failure. Finally, the obtained results infer that the solid-particle containing fluid flow was responsible for erosion–corrosion in the impeller failure.

Keywords

Erosion–corrosion Pump impeller Cast iron Ductile iron Failure 

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Copyright information

© ASM International 2014

Authors and Affiliations

  1. 1.Research & DevelopmentBuckmanMemphisUSA

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