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Revista de Metalurgia
Article . 1998 . Peer-reviewed
License: CC BY
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Revista de Metalurgia
Article
License: CC BY
Data sources: UnpayWall
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Revista de Metalurgia
Article . 1998
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Caracterización y propiedades mecánicas a alta temperatura de un acero inoxidable dúplex

Authors: J. A. Jiménez; M. Carsí; O. A. Ruano;

Caracterización y propiedades mecánicas a alta temperatura de un acero inoxidable dúplex

Abstract

Se ha estudiado la microestructura y el comportamiento mecánico a alta temperatura de un acero inoxidable dúplex procesado termomecánicamente. Durante el calentamiento a la temperatura de ensayo, el material recristaliza y se obtiene una microestructura de granos austeníticos de tamaños comprendidos entre 10 y 15 μm agrupados en islas incluidas en una matriz más o menos continua de ferrita. Ensayos de tracción a temperaturas superiores a 1.000°C y bajas velocidades de deformación muestran un exponente de la tensión igual a 2 y alargamientos a rotura de hasta 290 %. Estos valores permiten asociar el mecanismo de deformación al deslizamiento de fronteras de grano, el cual determina la desaparición progresiva de las islas de granos austeníticos durante la deformación. Finalmente, se encontró un valor de 167 kJ/mol para la energía de activación de la deformación plástica, la cual se relacionó con la energía de autodifusión del hierro a lo largo de las fronteras de grano.

Keywords

propiedades mecánicas, Mining engineering. Metallurgy, Fluencia, Propiedades mecánicas, TN1-997, Mechanical properties, Creep, Dúplex steels, Aceros dúplex, aceros dúplex, fluencia

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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).
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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.
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