MIC failure of 304L stainless steel piping left stagnant after hydrotesting

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

;