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Comportamiento tribológico del acero inoxidable dúplex 2205

Authors: Szyndelman, Grégory;

Comportamiento tribológico del acero inoxidable dúplex 2205

Abstract

El acero inoxidable 2205 contiene cantidades iguales de austenita g y ferrita α. Esta microestructura le da buena resistencia a la corrosión, mientras que sus propiedades mecánicas son intermedias entre las de los aceros inoxidables austeníticos y ferríticos, debido a la presencia de las dos fases. Sin embargo, una característica de los aceros dúplex poco investigada es su resistencia al desgaste. En este proyecto se estudia el comportamiento tribológico del acero inoxidable dúplex 2205. Para ello, se ha realizado su caracterización metalográfica y se han evaluado las características necesarias para complementar dicho estudio como la dureza, la densidad y la rugosidad superficial. A continuación, se han llevado a cabo los ensayos de tribología mediante la técnica de “pin-on-disk”. Esta técnica consiste en deslizar un pin sobre un disco a una cierta velocidad de deslizamiento durante una distancia determinada. Las velocidades de deslizamiento seleccionadas han sido: 0,2 m/s, 0,7 m/s y 1,2 m/s. Para cada una de estas velocidades, se han evaluado las distancias de: 500 m, 1000 m, 2000 m, 3000 m, 4000 m y 5000 m. A partir de estos ensayos, se ha determinado la cinética del desgaste, y los tipos y mecanismos de desgaste en deslizamiento del acero inoxidable 2205. Los resultados obtenidos muestran que la cinética de desgaste depende de la velocidad de deslizamiento. Los tipos y mecanismos de desgaste dominantes evolucionan en función de la velocidad de deslizamiento y la distancia recorrida, existiendo una zona de transición en la que disminuye la cinética de desgaste.

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Spain
Keywords

Àrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials::Assaigs de corrosió, Steel, Stainless Corrosion, Steel, Acer inoxidable -- Corrosió, Stainless Corrosion, Strength of materials, Resistència de materials, :Enginyeria dels materials::Assaig de materials::Assaigs de corrosió [Àrees temàtiques de la UPC]

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selected citations
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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!
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