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Revista de Metalurgia
Article . 2010 . Peer-reviewed
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Revista de Metalurgia
Article
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Revista de Metalurgia
Article . 2010
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DIGITAL.CSIC
Article . 2012 . Peer-reviewed
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Optimización del tratamiento de fosfatado como método de protección frente a la corrosión

Authors: Onofre-Bustamante, E.; Olvera, A.; Rodríguez, F. J.; Carboneras, M.; Álvarez, M.; García-Alonso, M. C.; Escudero Rincón, María Lorenza; +1 Authors

Optimización del tratamiento de fosfatado como método de protección frente a la corrosión

Abstract

En el presente trabajo se estudia el fosfatado como tratamiento de conversión química (TCQ) libre de cromo, partiendo de un estudio básico del fosfatado comercial aplicado por inmersión en soluciones al 100 % y diluciones 1:2, 1:5 y 1:10. Para conseguir un buen recubrimiento de fosfato se determinó el tiempo óptimo de inmersión mediante curvas de potencial a circuito abierto. Las propiedades de protección contra la corrosión se evaluaron mediante medidas de resistencia a la polarización e impedancia electroquímica. La adherencia al sustrato se determinó por ensayos de tracción (pull-off). Los resultados en inmersión continua mostraron que la aplicación de un recubrimiento orgánico sobre el sustrato previamente fosfatado en una dilución 1:5 (10 min) aumenta la resistencia a la corrosión en, al menos, un orden de magnitud con respecto al sustrato no fosfatado, incrementando la adherencia y el tiempo de vida del sistema recubrimiento-sustrato debido a que la película de conversión forma parte integral del sustrato y la superficie generada incrementa el área y número de sitios activos.

Country
Spain
Keywords

Mining engineering. Metallurgy, Protection, corrosión, TN1-997, protección, Phosphate, Fosfatados, Corrosion, Adhesión, Corrosión, adhesión, fosfatado, Protección, Adhesion

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
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2
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