Accession Number:

ADA555859

Title:

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

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS OCEANOGRAPHY DIV

Report Date:

2012-02-01

Pagination or Media Count:

8.0

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 oxideoxyhydroxides 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.

Subject Categories:

  • Industrial Chemistry and Chemical Processing
  • Properties of Metals and Alloys
  • Civil Engineering
  • Pumps, Filters, Pipes, Tubing, Fittings and Valves

Distribution Statement:

APPROVED FOR PUBLIC RELEASE