About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Radiation Effects in Metals and Ceramics
|
Presentation Title |
H-56: Modeling Slip-induced Crack Initiation in Nickel Containing Nano-scale Helium Bubbles |
Author(s) |
Tung Yan Liu, Michael J. Demkowicz |
On-Site Speaker (Planned) |
Tung Yan Liu |
Abstract Scope |
We present molecular dynamics simulations of plastic deformation in nickel containing nano-scale helium bubbles to study the mechanism of slip-induced crack initiation. We show results from models that are built according to experimental data of defect structures developed under irradiation in a nuclear reactor. We focus on examining the effect of slip band formation in nickel with interstitials clusters, bubbles, grain boundaries and hard inclusions, which may serve as precursors of crack initiation. We discuss the implications of our work for understanding the mechanism of deformation and fracture in irradiated materials, as well as techniques of modelling material property evolution. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |