MIC failure of 304L stainless steel piping left stagnant after hydrotesting
Auteur(s) / Author(s)
BORENSTEIN Susan W. (1) ; LINDSAY Philip B. (1) ;
Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)
(1) Aptech Engineering Services, Inc., ETATS-UNIS
Résumé / Abstract
This case history describes how microbiologycally influenced curresion (MIC) occurred on AISI type 304L stainless steel (UNS S30403) piping after being in contact with untreated, stagnant, low-chloride potable water for 9 months. MIC is caused by the presence and activities of microorganisms within biofilms. It is often misdiagnosed as attack caused by conventional chloride crevice/pitting corrosion. Specialized microbiological analysis techniques, including surface analysis by environmental scanning electron microscopy and in situ bacterial and optical microscopy, were used in the failure analysis.
Revue / Journal Title
Materials performance ISSN 0094-1492
Source / Source
2002, vol. 41, no6, pp. 70-73 (6 ref.)
Langue / Language
Anglais
Editeur / Publisher
National Association of Corrosion Engineers, Houston, TX, ETATS-UNIS (1974) (Revue)
Mots-clés anglais / English Keywords
Austenitic stainless steel
;
Stainless steel-304L
;
Experimental study
;
Corrosion mechanism
;
Bacterial corrosion
;
Corrosion
;
Piping
;
Steel
;
Mots-clés français / French Keywords
Acier Cr19Ni10-L
;
Acier inoxydable austénitique
;
Acier inoxydable 304L
;
Etude expérimentale
;
Mécanisme corrosion
;
Corrosion biochimique
;
Corrosion
;
Tuyauterie
;
Acier
;