Work

Modeling CDRX and MDRX during hot forming of zircaloy-4

Year: 2023

Type: article

Abstract: A recently developed full field level-set model of continuous dynamic recrystallization is applied to simulate zircaloy-4 recrystallization during hot compression and subsequent heat treatment. The influence of strain rate, final strain and initial microstructure is investigated, by experimental and simulation tools. The recrystallization heterogeneity is quantified. This enables to confirm that quenched microstructures display a higher extent of heterogeneity. The simulation results replicate satisfactorily experimental observations. The simulation framework is especially able to capture such recrystallization heterogeneity induced by a different initial microstructure. Finally, the role of intragranular dislocation density heterogeneities over the preferential growth of recrystallized grains is pointed out thanks to additional simulations with different numerical formulations.

Source: Modelling and Simulation in Materials Science and Engineering

DOI: 10.1088/1361-651x/acfe27

Authors: Victor Grand, Baptiste Flipon, Alexis Gaillac, Marc Bernacki

Institutions: Centre de Mise en Forme des Matériaux, Framatome (France), Centre National de la Recherche Scientifique, Université Paris Sciences et Lettres, École Nationale Supérieure des Mines de Paris

Language: English

Topic: Metallurgy and Material Forming

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Agence Nationale de la Recherche

Award: Development of an innovative and global numerical framework for the modeling of microstructure evolutions during metal forming industrial processes.