Journal of Failure Analysis and Prevention

, Volume 13, Issue 1, pp 47–54 | Cite as

Failure Analysis of Leaked Stainless Steel Housing of Electro Chemical Hydrogen Metre

  • V. Thomas Paul
  • M. Radhika
  • P. Parameswaran
  • V. A. Suresh Kumar
  • I. B. Noushad
  • S. Saroja
  • M. Vijayalakshmi
Technical Article---Peer-Reviewed
  • 142 Downloads

Abstract

The failure of the stainless steel housing of Electro Chemical Hydrogen Metre (ECHM) in the Steam Generator Test Facility resulting in a minor sodium fire has been investigated through systematic metallographic and fractographic analyses. The root cause of the failure was identified as caustic stress corrosion of the stainless steel flange that forms a part of the ECHM housing.

Keywords

Sensitisation Metallurgical investigation Intergranular stress corrosion Failure mechanism Austenitic stainless steel Steel microstructure Scanning electron microscope 

Notes

Acknowledgements

The authors thank Shri. S.C. Chetal, Director, IGCAR, Kalpakkam and Mr. K.K. Rajan, Director, FRTG, & Dr. T. Jayakumar, Director, MMG for their keen interest and motivation in this work. The authors also wish to acknowledge the help rendered during the experimental work by Shri. D. Natarajan, Foreman, PMG.

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Copyright information

© ASM International 2012

Authors and Affiliations

  • V. Thomas Paul
    • 1
  • M. Radhika
    • 1
  • P. Parameswaran
    • 1
  • V. A. Suresh Kumar
    • 2
  • I. B. Noushad
    • 2
  • S. Saroja
    • 1
  • M. Vijayalakshmi
    • 1
  1. 1.Physical Metallurgy GroupIndira Gandhi Centre for Atomic ResearchKalpakkamIndia
  2. 2.Fast Reactor Technology GroupIndira Gandhi Centre for Atomic ResearchKalpakkamIndia

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