| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Chemistry and Physics of Interfaces
|
| Presentation Title |
Grain boundary property distributions resulting from coarsening of an Al-Cu alloy |
| Author(s) |
Zipeng Xu, Jun Sun, Jette Oddershede, Harpreet Kaur, Kiana Naghibzadeh, Kaushik Dayal, Jules Dake, Carl Krill, Gregory Rohrer |
| On-Site Speaker (Planned) |
Zipeng Xu |
| Abstract Scope |
Grain boundary (GB) properties in an Al-5 wt % Cu alloy have been measured after 10 sequential annealing steps for 15 min at 630°C. At the annealing temperature, a copper-rich liquid was present at the GBs. The growth and shrinkage of the grains are strongly correlated to the grain size and the velocity of individual boundaries is strongly correlated to curvature, as expected from the classical theory of coarsening. The experimental results compare well to simulations of the process. The correlation of the interface velocity and curvature is observed both for the data on average and for selected grain boundary misorientations. It is also found that the curvatures and relative areas of GBs are anisotropic, even though they are formed in conditions of low energy anisotropy. The observations are compared to results from grain growth in the solid state, where strong correlations between interface velocity and curvature are not observed. |
| Proceedings Inclusion? |
Planned: |