| Issue |
MATEC Web Conf.
Volume 321, 2020
The 14th World Conference on Titanium (Ti 2019)
|
|
|---|---|---|
| Article Number | 12026 | |
| Number of page(s) | 4 | |
| Section | Microstructure Evolution | |
| DOI | https://doi.org/10.1051/matecconf/202032112026 | |
| Published online | 12 October 2020 | |
Phase field modeling of deformation twinning in β-metastable titanium alloys
a Laboratoire d’Etude des Microstructures (LEM), ONERA, CNRS, Université Paris-Saclay F-92332, Châtillon, France
b Université de Lorraine-CNRS, IJL, Campus Artem, 54000, Nancy, France
A multi-phase field model describing the anisotropic growth of the {332}<113> twinning system in β-metastable titanium alloys is hereby presented considering the geometrically linear and non-linear frameworks. Phase fields are associated with each twin variant of the {332}<113> system. The lattice transformation describing the twinning systems is incorporated in the model via relevant eigenstrain tensors. We illustrate the capability of our model by investigating the formation of twins networks, within both geometrically linear and non linear frameworks. In particular, it is shown that the predicted microstructures exhibit strong differences, resulting from a difference in the selection of the variant habit planes.
© The Authors, published by EDP Sciences, 2020
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