Mean field modelling of dynamic and post-dynamic recrystallization during hot deformation of Inconel 718 in the absence of δ phase particles

Meriem Zouari; Nathalie Bozzolo; Roland E. Logé

doi:10.1016/j.msea.2015.12.102

Journal articles

Mean field modelling of dynamic and post-dynamic recrystallization during hot deformation of Inconel 718 in the absence of δ phase particles

Meriem Zouari ^{1, 2} Nathalie Bozzolo ¹ Roland E. Logé ^{3, 1}

1 CEMEF - Centre de Mise en Forme des Matériaux

2 LISI - Laboratoire d'Informatique Scientifique et Industrielle

3 Laboratory of Thermomechanical Metallurgy

Abstract : Dynamic and post-dynamic recrystallization kinetics were investigated during hot-working of Inconel 718 as a function of temperature, strain and strain rate in the single phase domain. The post-dynamic evolution was found to be extremely fast and impacting significantly the grain size. A two-site mean field model including both dynamic and post-dynamic evolution was used to predict the recrystallized fraction, the average grain size and the stress–strain curves in different thermomechanical conditions.

Keywords : Hot forging Hot torsion test Dynamic recrystallization Post-dynamic recrystallization Stress–strain curve Inconel 718

Document type :

Journal articles

Domain :

Engineering Sciences [physics] / Materials

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Submitted on : Tuesday, April 5, 2016 - 11:09:03 AM
Last modification on : Wednesday, November 17, 2021 - 12:28:19 PM

Mean field modelling of dynamic and post-dynamic recrystallization during hot deformation of Inconel 718 in the absence of δ phase particles

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Mean field modelling of dynamic and post-dynamic recrystallization during hot deformation of Inconel 718 in the absence of δ phase particles

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