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Obtención de mapas de procesado para chapa de la aleación Mg AZ31 mediante ensayos de "small punch"

Authors: Jiménez Martín, Rafael Emilio;

Obtención de mapas de procesado para chapa de la aleación Mg AZ31 mediante ensayos de "small punch"

Abstract

En este proyecto, se han realizado diferentes experimentos del ensayo “Small Punch”, para la obtención de mapas de procesado de chapa la aleación de magnesio AZ31. Existen mapas de procesado de distintas aleaciones, pero en la mayoría de los casos, tratan de predecir el comportamiento de materiales "macizos" ("bulk"), no habiéndose encontrado antecedentes de mapas de procesado para chapa. El magnesio es un material muy ligero y la optimización de su conformado en chapa por deformación plástica, es un aliciente importante en industrias, como la del automóvil, donde reemplazar materiales compuestos no reciclables, por aleaciones 100% reciclables, puede ser una poderosa fuerza motriz de cambio. Los ensayos han sido realizados combinando la máquina de ensayos universal INSTRON 3384, con la cámara climática INSTRON 3119 y cubriendo un rango de temperaturas desde temperatura ambiente, hasta 400ºC y un rango de velocidades de deformación desde 0.003s-1, hasta 1s-1. También ha sido definida, una sistemática de cálculo para transformar los valores proporcionados por el ensayo “Small Punch”, en valores fiables de tensión-deformación, necesarios para el cálculo de los mapas de procesado. Los mapas son trazados, para todos los ensayos realizados, a valores de deformación de 0.03, 0.12 y 0.24. En ellos, se determinan dos dominios seguros de deformación que pueden considerarse rangos óptimos para el procesado del material. Además, el grado de deformación al que está sometido el material, ha resultado tener un alto efecto en los dominios determinados.

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Spain
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Keywords

Aleaciones de magnesio, Materiales, Ensayo de materiales, Mecánica de sólidos, Ensayo “Small Punch”, Mapas de procesado

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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!
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