Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
권호 표지

Localized Corrosion of Zn-Plated Carbon Steel Used as a Fire Sprinkler Pipe

  • Lee, Jin Hee (SK Engineering & Construction Corp.) ;
  • Lee, You-Kee (Department of Semiconductor & Electronics Engineering, Uiduk University) ;
  • Lee, Kyu Hwan (Department of Surface Technology, Korea Institute of Materials Science) ;
  • Kim, Dong-Kyu (Department of Metallurgical Engineering, Dong-A University,) ;
  • Lee, Sung Gun (Department of Metallurgical Engineering, Dong-A University,) ;
  • Lee, Sang Hwa (Department of Metallurgical Engineering, Dong-A University,) ;
  • Kim, Insoo (Department of Metallurgical Engineering, Dong-A University,)
  • Received : 2009.05.20
  • Accepted : 2009.07.21
  • Published : 2009.08.01
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Abstract

The failure of a Zn-plated carbon steel pipe that served as a fire sprinkler was investigated in terms of the pipe's corrosion products. The pipes leaked through holes formed beneath the tubercles. The formation of oxygen concentration cell involves colonization of metal surface by aerobic bacteria or other slime formers, and anodic reaction beneath tubercle is accelerated by the presence of SRB, leading to the formation of hole beneath tubercle.

Keywords

References

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