| Issue |
MATEC Web Conf.
Volume 80, 2016
NUMIFORM 2016: The 12th International Conference on Numerical Methods in Industrial Forming Processes
|
|
|---|---|---|
| Article Number | 02003 | |
| Number of page(s) | 8 | |
| Section | MS2: Microstructure modeling in forming processes | |
| DOI | https://doi.org/10.1051/matecconf/20168002003 | |
| Published online | 24 October 2016 | |
Introduction to the level-set full field modeling of laths spheroidization phenomenon in α/β titanium alloys
1 MINES ParisTech, PSL Research University, CEMEF - Centre de mise en forme des matériaux, CNRS UMR 7635, CS 10207, rue Claude Daunesse, 06904 Sophia Antipolis Cedex, France
2 École Nationale Supérieure des Mines de Saint-Étienne. Centre Sciences des Matériaux et des Structures. Département Mécanique et Procédés d’Elaboration. 158 cours Fauriel, 42023 Saint-Etienne Cedex 02, France
3 Timet Savoie, 62 avenue Paul Girod, 73400 Ugine, France
4 Aubert & Duval, rue des Villas, 63770 Les Ancizes-Comps, France
5 Safran, SafranTech - Pôle Matériaux et procédés, Rue des Jeunes Bois, Châteaufort, CS 80112, 78772 Magny-Les-Hameaux, France
6 CEA Valduc, 21120 Is-Sur-Tille, France
a Corresponding author: danai.polychronopoulou@mines-paristech.fr
Fragmentation of α lamellae and subsequent spheroidization of α laths in α/β titanium alloys occurring during and after deformation are well known phenomena. We will illustrate the development of a new finite element methodology to model them. This new methodology is based on a level set framework to model the deformation and the ad hoc simultaneous and/or subsequent interfaces kinetics. We will focus, at yet, on the modeling of the surface diffusion at the α/β phase interfaces and the motion by mean curvature at the α/α grain interfaces.
© The Authors, published by EDP Sciences, 2016
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