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
Palabras clave:
Aceros inoxidables super duplex. Baño de Watts, Fracción volumétrica. Soldadura láser. Níquel.Resumen
Los aceros inoxidables super duplex tienen una microestructura bifásica con proporciones similares de austenita y ferrita, lo que les confiere alta resistencia mecánica y a la corrosión. Sin embargo, después de la soldadura, la microestructura tiende a desequilibrarse, con predominancia de ferrita, lo que compromete sus propiedades. Este estudio investigó el uso de un baño de Watts para corregir el balance de fases en un acero inoxidable super duplex UNS S32750 soldado por láser pulsado Nd:YAG. Se analizaron tres condiciones diferentes, variando el tiempo del baño. La investigación evaluó la morfología de las fases, las fracciones volumétricas y la composición mediante EDS, demostrando que el baño de Watts, al formar una capa de níquel electrodepositado, fue eficaz para corregir el desequilibrio de fases en la soldadura.
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