About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithm Development in Materials Science and Engineering
|
Presentation Title |
Influence of Cross Slip Based Dynamic Recovery during Plane Strain Compression of Aluminum |
Author(s) |
Chaitali Patil, Supriyo Chakraborty, Stephen Niezgoda |
On-Site Speaker (Planned) |
Chaitali Patil |
Abstract Scope |
Spatial evolution of orientations and stored energy during deformation is highly heterogeneous. This local heterogeneity further influences nucleation and growth of the recrystallized grains during annealing treatment. In this work, we explicitly incorporated stress dependent dynamic recovery of screw dislocations into a dislocation density based crystal plasticity model. The model is used to analyze the plane strain compression of aluminum. We show that stored energy difference and misorientation with neighboring locations is influenced by the stress dependent dynamic recovery of the screw dislocations. Further, this deformation heterogeneity can lead to nucleation preference for the cube orientations for range of nucleation criteria, grain size or initial texture. Hence, cross slip based dynamic recovery is pivotal to the nucleation advantage of cube oriented recrystallized grains. Our results also stress that the dynamic recovery of screw dislocations should be incorporated in the mesoscale deformation analysis. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Modeling and Simulation, Other |