| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Computational and Modeling Challenges in Metals and Alloys for Extreme Environments
|
| Presentation Title |
Understanding Interface Properties Through Dislocation Dynamics Simulations in Metallic Nanolaminates |
| Author(s) |
Aritra Chakraborty, Miroslav Zecevic, Abigail Hunter, Xiang-Yang Liu, Ricardo Lebensohn, Laurent Capolungo |
| On-Site Speaker (Planned) |
Aritra Chakraborty |
| Abstract Scope |
Metallic nanolaminates (MNL) are nanoscale systems with alternating layers of dissimilar materials, and serve as suitable model materials for characterizing failure modes common to all metals since their microstructure can be experimentally tailored to isolate distinct failure modes. The deformation of these structures is heavily dominated by the interface (grain or phase boundaries) behavior and, hence, understanding their role is critical in accurately predicting their structural failure. In this work, we will use continuum dislocation dynamics (DD) simulations to capture interface-dislocation interactions for different types of MNL, in an efficient fast Fourier transform (FFT) framework. Critical aspects of this work include studying the role of interface thickness, orientation, stress (de)localization and ease of slip transfer at the interface on overall material response. Successful characterization of such critical attributes will address significant questions about origin of failure in materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Thin Films and Interfaces, Modeling and Simulation |