| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recycling and Sustainability in Cast Shop Technology: Joint Session with REWAS 2025
|
| Presentation Title |
Multifrequency Ultrasonic Treatment of Aluminum Alloys for Microstructural Modification
|
| Author(s) |
Raquel Fierro Jaime, Hélder Puga, Miodrag Prokic, Martijn Vos, Diran Apelian |
| On-Site Speaker (Planned) |
Raquel Fierro Jaime |
| Abstract Scope |
Ultrasonic Treatment (UST) is a novel and nascent liquid processing method with potential as a sustainable casting technology for use in the treatment and refinement of scrap and downcycled aluminum alloy systems. UST is the application of ultrasonic energy into a liquid metal which induces modification and refinement in the solidified microstructure. The two frequency modalities through which UST is imparted into the liquid metal, i.e.- fixed frequency and multifrequency, dictate the effectiveness of treatment. Applying a multifrequency ultrasonic wave increases the efficiency, intensity, and depth of treatment. Downcycled and scrap aluminum alloys contain an increased presence of detrimental intermetallic phases whose morphologies have a negative impact on mechanical performance, making them unfit for cast products. Multifrequency UST demonstrates the ability to modify the intermetallic phases, thus altering composition and/or morphology. Changes to intermetallic phases in both a model alloy system and in A380 will be presented and discussed. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Process Technology, Sustainability |