Adherence of sulfide mineral layers produced by corrosion of copper alloys

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3316128· OSTI ID:5630525

McNeil, M B ^[1]; Amos, A L; Woods, T L ^[2]

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1. Nuclear Regulatory Commission, Washington, DC (United States). Office of Research
2. East Carolina Univ., Greenville, NC (United States). Dept. of Geology

Sulfiding corrosion of copper alloys can occur from microbiologically induced corrosion (MIC) mechanisms involving sulfate reducing bacteria (SRB) or from exposure to bulk waters containing reduced sulfur (S) species of microbiological, industrial, or geologic origin. The sulfide minerals produced generally are nonadherent. Under some circumstances, adherent sulfide layers can form and offer a degree of protection against further attack. Test were conducted in sterile synthetic seawater with various levels of dissolved sulfide, and the structure of the corrosion products was examined. Results, combined with MIC observations from literature and geochemical studies of copper sulfide paragenesis, revealed the nature of the reactions that produce dense, relatively protective sulfides.

• OSTI ID: 5630525
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 49:9; ISSN 0010-9312; ISSN CORRAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ADHESION
ALLOYS
BACTERIA
CHALCOGENIDES
CHEMICAL REACTIONS
COPPER ALLOYS
CORROSION
CORROSIVE EFFECTS
METABOLISM
MICROORGANISMS
SULFATE-REDUCING BACTERIA
SULFIDES
SULFUR COMPOUNDS