| Autor: |
Jaén, Juan, de Villalaz, Mariela, de Araque, Lilibeth, de Bósquez, Agnes |
| Zdroj: |
Hyperfine Interactions; September 1997, Vol. 110 Issue: 1-2 p93-99, 7p |
| Abstrakt: |
The corrosion of a carbon steel was studied in different atmospheres at sites in the Republic of Panama. The weight loss (corrosion penetration) suffered by the carbon steel is related to time by a bilogarithmic law. Mössbauer spectroscopy indicated the rust was composed of non-stoichiometric magnetite (Fe3-xO4), maghemite (γ-Fe2O3), goethite (α-FeOOH) of intermediate particle size, lepidocrocite (γ-FeOOH) and superparamagnetic particles. Magnetite formation is related to the alternating dry--wet cycles. Goethite is related to corrosion penetration by a saturation type of behavior, following a Langmuir type of relationship. Goethite in rust protects steel against further atmospheric corrosion. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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