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Comportamiento termomecánico de un acero microaleado al Nb-V

Authors: Cartaya, E. A.; Varela, G.; Cabrera Marrero, José M.; Prado Pozuelo, José Manuel;

Comportamiento termomecánico de un acero microaleado al Nb-V

Abstract

Empleando ensayos de compresión simple en ca- liente y relajación de tensiones después de la de - formación en un dilatómetro modelo DIL805T, se obtuvieron las curvas de fluencia y relajación de dos aceros, el primero de ellos al C – Mn y otro HS- LA con idéntica composición química base, micro- aleado con Nb – V. Los ensayos de compresión simple fueron efectua- dos a temperaturas en el rango austenítico, desde 900 – 1.200 ºC y velocidades de deformación de 0.001, 0.01, 0.1, 1 y 10 s - 1 . Se obtuvieron las curvas de fluencia para las diferentes condiciones, permitien- do el estudio del efecto de los elementos microale- antes sobre la recristalización dinámica y la micro- estructura final; pudiendo comprobar mediante un análisis microestructural el efecto retardador en la cinética de recristalización que presenta el acero microaleado, el incremento en la deformación críti- ca y en la energía de activación. Se determina asi- mismo por medio del método de relajación de ten - siones la cinética de precipitación, elaborando los diagramas precipitación – temperatura – tiempo

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Spain
Keywords

Àrees temàtiques de la UPC::Enginyeria dels materials, Acer d'alta resistència -- Proves, :Enginyeria dels materials [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).
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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
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