| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales IV
|
| Presentation Title |
Influence of the Cross Slip Based Dynamic Recovery during Plane Strain Compression of Aluminium |
| Author(s) |
Chaitali Patil, Supriyo Chakraborty, Stephen Niezgoda |
| On-Site Speaker (Planned) |
Chaitali Patil |
| Abstract Scope |
Cross slip of the screw dislocations is one of the important mechanisms during deformation of the medium to high stacking fault energy fcc metals. In the recent literature, it has been proposed that activation energy for the cross slip depends on the applied stress state. As a result, cross slip mediated dynamic recovery of the screw dislocations will also be governed by the applied stress state. Hence, we incorporated the stress dependent dynamic recovery of the screw dislocations in the dislocation density based constitutive law. We analyzed influence of the dynamic recovery on the evolution of the field variables during the plane strain compression of polycrystalline aluminium. Results indicate that cross-slip based dynamic recovery enhances nucleation propensity of the cube orientations. As the cube texture is commonly observed after static recrystallization of fcc materials, our results highlight importance of dynamic recovery of the screw dislocations during deformation. |