Finite element model of primary recrystallization in polycrystalline aggregates using a level set framework

Marc Bernacki (1) , Héba Resk (1) , Thierry Coupez (1) , Roland E. Logé (1)

1 CEMEF - Centre de Mise en Forme des Matériaux

The paper describes a robust finite element model of interface motion in media with multiple domains and junctions, as is the case in polycrystalline materials. The adopted level set framework describes each domain (grain) with a single level set function, while avoiding the creation of overlap or vacuum between these domains. The finite element mesh provides information on stored energies, calculated from a previous deformation step. Nucleation and growth of new grains are modelled by inserting additional level set functions around chosen nodes of the mesh. The kinetics and topological evolutions induced by primary recrystallization are discussed from simple test cases to more complex configurations and compared with the Johnson-Mehl-Avrami-Kolmogorov theory.

Mots clés: Cold working; work hardening; annealing; post-deformation annealing; quenching; tempering recovery; and crystallization

Domaines: Sciences de l'ingénieur [physics]; Matériaux

Marc Bernacki, Héba Resk, Thierry Coupez, Roland E. Logé. Finite element model of primary recrystallization in polycrystalline aggregates using a level set framework. Modelling and Simulation in Materials Science and Engineering, 2009, 17 (6), 22 p. - Article Number: 064006. ⟨10.1088/0965-0393/17/6/064006⟩. ⟨hal-00508362⟩