About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Scandium Extraction and Use in Aluminum Alloys
|
| Presentation Title |
The Development of New Aluminum Alloys for the Laser Powder-bed Fusion Process |
| Author(s) |
Nathan Andrew Smith, Mostafa Yakout, Mohamed Elbestawi, Phil Chataigneau, Peter Cashin |
| On-Site Speaker (Planned) |
Nathan Andrew Smith |
| Abstract Scope |
The laser powder-bed fusion processing environment poses significant challenges for the expansion of materials available for usage as a result of the drastic cooling rates native to this manufacturing method. First incorporated in the casting manufacturing ecosystem, the incorporation of small amounts of grain-refining rare-earth metals, particularly scandium, into aluminum alloys provides an avenue to resist the detrimental effects imposed by extreme thermal gradients. Through the analysis of solidification behavior, complementary element pairings, and owing to the supersaturation potential in these manufacturing conditions, a material design strategy is outlined based upon experimental observations. Results show that an extensive processing window exists for the material studied, with many opportunities for further improvement of print results available. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Additive Manufacturing, Aluminum, Other |