About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
Comparison of TiB2 and TiC Grain Refiners’ Impact on Surface Quality, Edge Cracking, and Rolling Performance of AA5182 DC-Cast Ingot |
Author(s) |
Joshua G. Lawalin, Pascal Gauthier, Tao Wang |
On-Site Speaker (Planned) |
Joshua G. Lawalin |
Abstract Scope |
Titanium diboride (TiB2) and titanium carbide (TiC) are both widely used as grain refiners in the production of DC-cast aluminum ingot for rolled products. This study evaluated industrially produced DC-cast aluminum ingot of alloy AA5182 with TiB2 and TiC and the grain refiners’ impact on ingot surface condition, as-cast microstructure, rolling performance, grain size distribution, as well as final product mechanical properties. Through optical microscopy and SEM-EDS metallographic examination of the sheet post-hot rolling, the study found that the use of TiC grain refiner resulted in fewer surface stress risers resulting in improved surface quality, rollability, and edge cracking performance of AA5182, as well as an improved grain size uniformity and less grain refiner agglomeration versus the same alloy cast with TiB2 grain refiner. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Process Technology, |