Prediction of grain size evolution during thermal and treatments at the mesoscopic scale: numerical improvements and industrial examples.

Amico Settefrati (1) , Benjamin Scholtes (1, 2) , Nathalie Bozzolo (2) , Etienne Perchat (1) , Marc Bernacki (2)

1 Transvalor
2 CEMEF - Centre de Mise en Forme des Matériaux

Recently, an original full field model working at the mesoscopic scale using the level set (LS) method in a finite element (FE) framework has been introduced. This approach has demonstrated its potential for the simulation of grain growth and recrystallization problems. Through the development of the DIGIMU® software, this methodology is now considered for industrial applications. The paper presents the recent developments made on the LS approach and some examples of large scale simulations in two and three dimensions considering thermal treatments applied on materials. Grain boundaries motion considering the presence or not of second phase particles (like precipitates) are investigated

Mots clés: Mesoscale modelling; Level Set numerical method; Finite element modelling; Grain growth by capillarity; Smith-Zener pinning phenomenon

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

Amico Settefrati, Benjamin Scholtes, Nathalie Bozzolo, Etienne Perchat, Marc Bernacki. Prediction of grain size evolution during thermal and treatments at the mesoscopic scale: numerical improvements and industrial examples.. 24th IFHTSE congress, Jun 2017, Nice, France. ⟨hal-01558411⟩