About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
Fundamental Study on Modified Solidification of 1370 and AlSi7 with and without Commercial Grain Refiners |
Author(s) |
Robert Fritzsch, Amund Ugelstad, Henrik Gobakken, Silje Li, Shahid Akhtar, Lars Arnberg, Ragnhild Elizabeth Aune |
On-Site Speaker (Planned) |
Robert Fritzsch |
Abstract Scope |
The microstructure of aluminium (Al) and its alloys is a well-investigated key parameter utilised to adjust their mechanical, chemical, and physical properties. The microstructure of Al can be altered by several processes, such as controlled solidification rate, grain refiner additions, and external force fields. The present study has chosen to focus on conventional procedures for grain refinement and compare the results to new low-energy concepts. In view of this, five different commercial grain refiners (2 different AlTi3B1, AlTi5B1, AlB3 and AlTi3C0.15) were added to lean 1370 and AlSi7 aluminium alloys at (i) different solidification rates, and (ii) influenced by alternating electromagnetic fields. The results were evaluated based on the effects on grain size and electrical conductivity. The initial results revealed an inverse relationship between the conductivity and the final grain size, which also proved to be independent of the origin of the refined grain structure. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Solidification, Process Technology |