| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Rapid Solidification of Ultrasonically Atomised Aluminium Melt |
| Author(s) |
Shazamin Bin Shahrani, Tungky Subroto, Dmitry Eskin, Iakovos Tzanakis, John Durodola, Georges Salloum-Abou-Joude, Abhinav Priyadarshi |
| On-Site Speaker (Planned) |
Abhinav Priyadarshi |
| Abstract Scope |
Recent developments in ultrasonic atomisation (UA) towards the production of Additive Manufacturing (AM) grade metal powders has been promising. This process involves the use of ultrasonic transducer operating at 17.8 kHz, where the titanium sonotrode atomises poured molten pure Aluminium and AlSi11Fe4 at temperatures up to 720°° C through standing wave vibrations. Different powder batches were produced through variations in sonotrode angle, sonication power, and landing distance from the tip of sonotrode. Rapid solidification of atomised metal droplets in air resulted in mixed quality of powders including AM desired spherical shapes, as well as elongated and branching teardrops, with the powder size ranging from 40 to 300 µμm . Energy dispersive x-ray spectroscopy (EDS) was also performed to confirm any contamination or changes in chemical composition of the materials used. This method would help improve characterisation of aluminium alloy powders produced through UA. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Additive Manufacturing, Powder Materials |