Evaluación del comportamiento corrosivo de un acero al carbón para tuberías (API 5L-X52) sometido a una prueba de inmersión de corta duración en un medio acuoso acido.
DOI:
https://doi.org/10.46842/ipn.cien.v30n1a15Palabras clave:
corrosión, API 5L, medio amargo, pruebas de inmersiónResumen
Las tuberías de acero al carbono API son ampliamente utilizadas en la industria del petróleo y el gas para el transporte de productos, están constantemente expuestas a ambientes agresivos, la mayoría de ellos ricos en concentraciones de CO2 y H2S, lo que aumenta el desgaste por corrosión. En este estudio se investigó el comportamiento corrosivo del acero al carbono API 5L-X52 cuando se sumerge en una solución estática simulando un medio amargo durante cortos periodos de tiempo, simulando las condiciones del primer contacto entre un medio amargo y los aceros API. Las pruebas se realizaron según la norma ASTM G31. Se utilizó el método de pérdida de masa para evaluar las tasas de corrosión en cada periodo de tiempo, y se empleó microscopía electrónica de barrido (SEM) con espectroscopia de rayos X de energía dispersiva (EDS) para caracterizar la microestructura y los productos de corrosión de las muestras. Los resultados mostraron que las primeras horas de contacto con el medio amargo generan un pico en la tasa de corrosión, después de ese tiempo la tasa de corrosión disminuye y tiende a estabilizarse; además, que la presencia de H2S en el medio acelera la formación de cráteres en la superficie, generando daños por corrosión por picaduras. Finalmente, la presencia de Sb en el análisis EDS ayuda a identificar los productos de corrosión en la superficie del metal.
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Derechos de autor 2026 Javier Alejandro Frias Flores, Jesus Gilberto Godinez Salcedo, Juan Rodrigo Laguna Camacho, Manuel Vite Torres (Autor/a)
Esta obra está bajo una licencia internacional Creative Commons Atribución-NoComercial-CompartirIgual 4.0.
