Mineralogical Fingerprints for Corrosion Processes Induced

Abstract

Mineralogical data, thermodynamic stability (Pourbaix) diagrams, and the simplexity principle for precipitation reactions are used to rationalize corrosion product mineralogy in a variety of situations involving both fresh and saline water and to demonstrate the action of SRB in these cases. Methods for using corrosion product mineralogy as a diagnostic tool for microbiologically influenced corrosion (MIC) are discussed. Many sulfides under near-surface biosphere conditions can only be produced by microbiological action on specific precursor materials such as metals. If a corrosion process can be shown to have taken place in a pH-Eh range typical of near-surface biosphere conditions and no compelling kinetic arguments can be adduced, mineralogical and geochemical data indicate that the presence of these minerals as corrosion products implies that sulfate reducing bacteria (SRB) were active. Keywords: Biofouling; Corrosion; Biodeterioration; Electrochemistry.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1990
Accession Number
ADA229840

Entities

People

  • Brenda J. Little
  • Jason Jones
  • M. B. Mcneil

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Anti-Bacterial Agents
  • Bacteria
  • Chemical Stability
  • Chemical Synthesis
  • Chemistry
  • Copper Alloys
  • Corrosion Resistance
  • Environment
  • Fingerprints
  • Fresh Water
  • High Temperature
  • Iron
  • Materials
  • Microorganisms
  • Mineralogy
  • Naval Shore Facilities
  • Salt Water

Readers

  • Materials Science and Engineering.
  • Theoretical Analysis.