Can Dynamic Bubble Templating Play a Role in Corrosion Product Morphology?
NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
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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.
- Industrial Chemistry and Chemical Processing
- Properties of Metals and Alloys
- Civil Engineering
- Pumps, Filters, Pipes, Tubing, Fittings and Valves