Can Dynamic Bubble Templating Play a Role in Corrosion Product Morphology?

Abstract

Dynamic templating as a result of cathodic hydrogen gas production is suggested as a possible mechanism for the formation of tube-like corrosion products on an unlined cast iron pipe in a drinking water distribution system. Mounds of corrosion product, with protruding tubes and freestanding tubes, were observed within a single 30 cm section of piping. Internal morphologies for all shapes were texturally complex although mineralogically simple, composed of two iron oxide/oxyhydroxides minerals: alpha-FeOOH (goethite) and Fe304 (magnetite). Static templating by either microorganisms or minerals was rejected as a possible mechanism for tube formation in this study.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2012
Accession Number
ADA555859

Entities

People

  • Brenda J. Little
  • Kirk G. Scheckel
  • Richard I. Ray
  • T. L. Gerke

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemistry
  • Corrosion
  • Diffraction
  • Digestive System Processes
  • Digital Images
  • Drinking Water
  • Electron Microscopy
  • Environmental Protection
  • Hydrogen
  • Iron
  • Iron Oxides
  • Materials
  • Microorganisms
  • Minerals
  • Oxides
  • X Rays

Readers

  • Geotechnical Engineering.
  • Materials Science and Engineering.
  • Nanocomposite Materials Science