Using a phase field model, we have investigated the role of plasticity on the morphological evolution of a precipitate during its diffusion-controlled dissolution, when submitted to shear loading. It is shown that the plastic strain pattern in the matrix strongly influences the local dissolution rate and consequently the final shape of the precipitate. Finally, it is demonstrated that for sufficiently fast and intense shear loadings, plasticity can induce splitting of the precipitate: this process could explain why small precipitates are observed in shear bands in Ti alloys forged parts.
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Kais Ammar 1; Benoît Appolaire 2, 3; Samuel Forest 1
@article{CRPHYS_2021__22_S3_353_0, author = {Kais Ammar and Beno{\^\i}t Appolaire and Samuel Forest}, title = {Splitting of dissolving precipitates during plastic shear: {A} phase field study}, journal = {Comptes Rendus. Physique}, pages = {353--370}, publisher = {Acad\'emie des sciences, Paris}, volume = {22}, number = {S3}, year = {2021}, doi = {10.5802/crphys.82}, language = {en}, }
TY - JOUR AU - Kais Ammar AU - Benoît Appolaire AU - Samuel Forest TI - Splitting of dissolving precipitates during plastic shear: A phase field study JO - Comptes Rendus. Physique PY - 2021 SP - 353 EP - 370 VL - 22 IS - S3 PB - Académie des sciences, Paris DO - 10.5802/crphys.82 LA - en ID - CRPHYS_2021__22_S3_353_0 ER -
Kais Ammar; Benoît Appolaire; Samuel Forest. Splitting of dissolving precipitates during plastic shear: A phase field study. Comptes Rendus. Physique, Volume 22 (2021) no. S3, pp. 353-370. doi : 10.5802/crphys.82. https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.82/
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