About this Abstract |
Meeting |
6th International Congress on 3D Materials Science (3DMS 2022)
|
Symposium
|
6th International Congress on 3D Materials Science (3DMS 2022)
|
Presentation Title |
Investigation of Neutron-irradiated Microstructure of Fe-Cr System: A GPU Accelerated Phase-field Method
|
Author(s) |
Jeonghwan Lee, Bohyun Yoon, Wooseob Shin, Kunok Chang |
On-Site Speaker (Planned) |
Jeonghwan Lee |
Abstract Scope |
Ferritic martensitic steels are promising structural materials due to their low swelling rate under the fast neutron irradiation. However, in the case of Fe-Cr steels, precipitation of Cr rich phase ( α' phase) near 475°C is still pointed out as a weak point in the view point of structural integrity. Since many studies reveal that phase play an important role in hardening/embrittlement of ferritic martensitic steels, understanding the spinodal decomposition behavior of Fe-Cr systems has been an important topic in studying the integrity of structural materials. Especially under the fast neutron irradiation, a dislocation loop generally occurs and it accelerates the precipitation of phase. In this study, we analyzed an effect of dislocation loop in precipitation and growth behavior of phase using the phase-field method in 3D. In addition, we considered elastic interaction between a dislocation loop and a precipitate using GPGPU parallelizing technique |
Proceedings Inclusion? |
Definite: Other |