About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
G-19: Phase Transformation in Cu |
Author(s) |
Nilanjan Mitra |
On-Site Speaker (Planned) |
Nilanjan Mitra |
Abstract Scope |
No solid-solid phase transformation is considered in Cu. However, Cu based Hume-Rothery shape memory alloys exhibit body centric phase transformations at high temperatures. Atomistic simulations along with Gibbs free energy calculations within the quasiharmonic approximations to demonstrate phase transformation of Cu (FCC to BCT) subjected to high temperature and high pressure in shock compression experiments, as per previous postulation by Friedel. Recent experimental investigations carried by Gupta at WSU on polycrystalline Cu demonstrated presence of body centered phases (PRB (2020): 102, 020103(R)). At comparatively low shock speed, various line defect formations can be observed in Cu which can typically be classified as plasticity mechanism within the material (including observance of twining in Cu under shock compression as observed by Meyer at UCSD). |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Phase Transformations, |