Comportamiento al desgaste y propiedades de corrosión de la aleación de aluminio AA2010 endurecida por envejecimiento

Autores/as

DOI:

https://doi.org/10.3989/revmetalm.201

Palabras clave:

Aluminio, Corrosión, Desgaste, Dureza, Envejecimiento, Tafel

Resumen


El presente estudio tiene como objetivo investigar la resistencia al desgaste y las propiedades de corrosión de la aleación AA2010 tratada térmicamente. La aleación se disolvió a 500 ºC durante 1 h y luego se inactivó en agua a temperatura ambiente. El tratamiento en solución fue seguido por un tratamiento de envejecimiento a 160 °C durante 16, 18 y 22 h. La dureza máxima se alcanzó a las 18 h. La prueba de desgaste utilizando un disco de bola provocó una deformación en frío y, por tanto, aumentó localmente la dureza de la superficie desgastada. La velocidad de corrosión de la aleación AA2010 tratada térmicamente se determinó mediante el método de extrapolación de Tafel. Los ensayos de corrosión se llevaron a cabo en NaCl al 3,5% a temperatura ambiente. La velocidad mínima de corrosión se obtuvo con la aleación envejecida 18 h. Así, para una resistencia moderada al desgaste y buenas propiedades frente a la corrosión, se recomienda un envejecimiento de 18 h. Finalmente, se observó corrosión intergranular y corrosión por picadura en la superficie de la aleación.

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Citas

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Publicado

2021-09-23

Cómo citar

Çömez, N. . (2021). Comportamiento al desgaste y propiedades de corrosión de la aleación de aluminio AA2010 endurecida por envejecimiento. Revista De Metalurgia, 57(3), e201. https://doi.org/10.3989/revmetalm.201

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