How Marine Conditions Affect Severity of MIC of Steels

Abstract

Both microfouling (bioflims) and macrofouling can influence corrosion in marine environments. Bioflims force an increase in open circuit potential (ennoblement) for passive alloys and an increase in cathodic kinetics. The result is a decrease in initiation time for crevice corrosion for some stainless steels and increase propagation rate for galvanic corrosion for some couple metals. A specific type of carbon sheet piling corrosion. accelerated low water corrosion, k has been attributed to a microbiologically generated sulfur cycle in the presence of heave macrofouling in tidal zones. Ennoblement and carbon steel sheet piling corrosion have been observed in fresh water. but the mechanisms producing these two phenomena are specific to the environments.

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Document Details

Document Type
Technical Report
Publication Date
Jul 11, 2007
Accession Number
ADA470237

Entities

People

  • Bryan Little
  • Jung‐Hee Lee
  • R. Ray

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aromatic Hydrocarbons
  • Carbon Steels
  • Chemistry
  • Corrosion
  • Environment
  • Fresh Water
  • Galvanic Corrosion
  • Hydroxides
  • Kinetics
  • Materials
  • Metals
  • Protective Coatings
  • Salt Water
  • Stainless Steel
  • Steel
  • Water

Readers

  • Materials Science and Engineering.