El efecto del recubrimiento electrolítico de níquel (Baño de Watts) en la microestructura de aceros inoxidables super duplex soldados por el proceso de láser pulsado Nd:YAG
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Aceros inoxidables super austeníticos. Aporte térmico. Recubrimiento. GTAW. Resistencia a la corrosión.Resumen
Los aceros inoxidables super austeníticos poseen alta resistencia mecánica y a la corrosión, siendo ampliamente utilizados en la industria del petróleo y gas. Sin embargo, la soldadura puede causar alteraciones en la microestructura, afectando sus propiedades. Este trabajo evalúa la influencia del aporte térmico en el recubrimiento de acero inoxidable super austenítico AISI 904L sobre acero de bajo carbono ASTM A516 Grado 70, utilizando el proceso GTAW. Se realizaron análisis macro y microestructurales, mediciones de microdureza y pruebas de corrosión en dos condiciones de soldadura. Los resultados demostraron que el aporte térmico afecta significativamente las propiedades del recubrimiento, reduciendo la dilución y aumentando la microdureza. Además, la resistencia a la corrosión del recubrimiento superó la del sustrato, acercándose a las propiedades del AISI
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Derechos de autor 2025 Revista Brasileira de Iniciação Científica
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