Analysis of Short-term Steel Corrosion Products Formed in Tropical Marine Environments of Panama
The phases and compositions of the corrosion products of a mild steel (A-36) and two weathering steels (A-588 and COR 420) formed after 3 months exposure to the tropical marine atmosphere of Panama were examined using FTIR and Mössbauer spectroscopy. The results show that amorphous or crystallized...
| Autores Principales: | Jaén, Juan A., Iglesias, Josefina, Hernández, Cecilio |
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| Formato: | Artículo |
| Idioma: | Inglés Inglés |
| Publicado: |
2017
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| Acceso en línea: |
http://ridda2.utp.ac.pa/handle/123456789/2531 http://ridda2.utp.ac.pa/handle/123456789/2531 |
| Sumario: |
The phases and compositions of the corrosion products of a mild steel (A-36) and two weathering steels (A-588 and COR 420) formed after 3 months exposure to the tropical marine atmosphere of Panama were examined using FTIR and Mössbauer spectroscopy. The results show that amorphous or crystallized iron oxyhydroxides goethite α-FeOOH and lepidocrocite γ-FeOOH are early corrosion products. Maghemite γ-Fe2O3 and magnetite Fe3O4 have also been identified and found to be prominent components for steels exposed to the most aggressive conditions. The formation of akaganeite β-FeOOH was observed when chlorides were occluded within the rust. FTIR showed the presence of hematite α-Fe2O3 in one sample. |
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