| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
Mechanisms of Twin-roll Caster Tips Degradation |
| Author(s) |
Guillaume Girard, François Veillette, William Roy |
| On-Site Speaker (Planned) |
Guillaume Girard |
| Abstract Scope |
Blackening and degradation of twin roll caster (TRC) tips can be observed at the leading edge closest to the caster roll shell and on the hot face of the tip in the regions in contact with molten aluminium after prolonged contact times. Although commonly observed, the exact mechanisms involved in the blackening reactions have never been researched and documented in depth. This paper details the analysis and investigations performed, provides insight into the reactions, and offers a comprehensive understanding of the mechanisms involved. It is shown that silica, from both the colloidal binder and aluminosilicate fibers used in the tip manufacturing process, gets reduced by molten aluminium via the formation of corundum and spinel phases, while blackening at the leading edge, is the result of staining from the release agent burning in the vicinity of the tip. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Characterization, Phase Transformations |