DISLOCATIONS BY-PASSING CUBIC UNSHEARABLE PRECIPITATES
![](https://simap.grenoble-inp.fr/medias/photo/precipitate_1237547343591.gif?ID_FICHE=147077)
A Frank Read source sends dislocations through a random set of cubic unshearable precipitates. They are by-passed according to the Orowan's model.
One can notice loop pile-up around each precipitates crossing the glide plane containing the source. The shape of the Orowan loops is either triangular or hexagonal corresponding to the intersection between a (100) cube and a (111) plane.
When many loops are present, passages between precipitates are narrower. Consequently the passage of dislocations is more difficult and the rythm of the source is slowed down.
![](https://simap.grenoble-inp.fr/medias/photo/precipitate_1237547343591.gif?ID_FICHE=147077)
A Frank Read source sends dislocations through a random set of cubic unshearable precipitates. They are by-passed according to the Orowan's model.
One can notice loop pile-up around each precipitates crossing the glide plane containing the source. The shape of the Orowan loops is either triangular or hexagonal corresponding to the intersection between a (100) cube and a (111) plane.
When many loops are present, passages between precipitates are narrower. Consequently the passage of dislocations is more difficult and the rythm of the source is slowed down.
![](https://simap.grenoble-inp.fr/medias/photo/3d4_1237393123837.gif?ID_FICHE=147077)
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