About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Mechanical Behavior at the Nanoscale VI
|
Presentation Title |
Investigating Role of Interfaces on Deformation Behavior of Metallic Nanolaminates Using Dislocation Dynamics Simulations |
Author(s) |
Aritra Chakraborty, Abigail Hunter, Laurent Capolungo |
On-Site Speaker (Planned) |
Aritra Chakraborty |
Abstract Scope |
Interfaces have been reported to significantly influence the deformation behavior of metallic nanolaminates, typically seen during nano-pillar experiments that observe hardness as a function of layer thickness. However, there is a lack of specific investigations on dislocation–interface interactions, their influence on the macroscopic behavior of these laminate structures, as well as the effect of interface character. Existing work performed atomistic simulations to capture such interface effects, while limited effort exists in modeling these systems using dislocation dynamics (DD). DD simulations provide a suitable framework to capture plasticity at nano-scales, and thus bridge the information between the (lower) atomistic and (higher) meso-scale models. In this work, we develop and implement an advanced interface model in an existing DD framework to simulate different interface behavior, as well as, accurately capture dislocation-interface interactions. Specifically, we identify the effect of different interface character on the bulk deformation behavior of these metallic nanolaminates. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Mechanical Properties, Thin Films and Interfaces |