Journal of Failure Analysis and Prevention

, Volume 18, Issue 1, pp 153–161 | Cite as

Alkaline Carbonate SCC Failures at a Refinery

  • Ryan J. HaaseEmail author
  • Larry D. Hanke
Technical Article---Peer-Reviewed


A metallurgical evaluation was performed to investigate two failures from carbonate-containing sour water service at a refinery. The failure mechanism for both fractured components (a pipe and a heat exchanger tube) was alkaline carbonate stress corrosion cracking. Alkaline carbonate stress corrosion cracking is a mechanism that has become more widely recognized in refinery service. This paper details the visual, SEM/EDS, metallographic, and microhardness evaluations used to determine the failure mechanism for each refinery component.


Alkaline carbonate stress corrosion cracking Stress corrosion cracking Carbonate Petroleum Refining 



The authors would like to thank Stephen Davis, who was one of the principal investigators for the evaluation of the heat exchanger tube.


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Copyright information

© ASM International 2018

Authors and Affiliations

  1. 1.Materials Evaluation and EngineeringPlymouthUSA

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