Estudio del comportamiento electroquímico de la capa de sellado del aluminio por Arc spray con compuesto epoxi reforzado con partículas cerámicas
Cargando...
Fecha
2025
Autores
Escobar Montero, Oscar
Teherán Álvarez, Ronaldo
Solano Uribe, Jaider
Castro Merino, Kevin
Título de la revista
ISSN de la revista
Título del volumen
Editor
Ediciones Universidad Simón Bolívar
Facultad de Ingenierías
Facultad de Ingenierías
Resumen
En este trabajo se evalúa el desempeño de un sistema de recubrimiento multicapa aplicado sobre acero naval A131 para ambientes marinos. El sistema está compuesto por una capa base de aluminio depositada mediante proyección térmica por arc spray, seguida de un sellador epóxico reforzado con partículas cerámicas de distintos tamaños y concentraciones. La investigación se basa en estudios previos, en los cuales los ensayos mecánicos de adherencia y desgaste resultaron satisfactorios, mientras que los ensayos de corrosión en cámara de niebla salina (CNS) presentaron deficiencias atribuibles a fallas en la aplicación del sellador. En esta nueva fase se optimizaron tanto la formulación como la metodología de aplicación del sellante, repitiendo los ensayos mecánicos y electroquímicos bajo condiciones controladas.
This paper evaluates the performance of a multilayer coating system applied on A131 naval steel for marine environments applied on A131 naval steel for marine environments. The system is composed of an aluminum base coat deposited by thermal spraying by arc spray, followed by an epoxy sealer by arc spray, followed by an epoxy sealer reinforced with ceramic particles of different sizes and concentrations ceramic particles of different sizes and concentrations. The research is based on previous studies, in which mechanical adhesion and wear tests were satisfactory, while corrosion tests in a salt spray chamber (CNS) showed deficiencies attributable to failures in the application of the sealant. In this new phase, both the formulation and the sealant application methodology were optimized, repeating the mechanical and electrochemical tests under controlled conditions.
This paper evaluates the performance of a multilayer coating system applied on A131 naval steel for marine environments applied on A131 naval steel for marine environments. The system is composed of an aluminum base coat deposited by thermal spraying by arc spray, followed by an epoxy sealer by arc spray, followed by an epoxy sealer reinforced with ceramic particles of different sizes and concentrations ceramic particles of different sizes and concentrations. The research is based on previous studies, in which mechanical adhesion and wear tests were satisfactory, while corrosion tests in a salt spray chamber (CNS) showed deficiencies attributable to failures in the application of the sealant. In this new phase, both the formulation and the sealant application methodology were optimized, repeating the mechanical and electrochemical tests under controlled conditions.
Descripción
Tabla de contenidos
Palabras clave
Aluminio, Pulverización térmica, Sellado, Compuesto de epoxi, Pruebas de corrosión
