| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Metal-Matrix Composites: Analysis, Modeling, Observations and Interpretations
|
| Presentation Title |
Simultaneously Applied Electromagnetic and Mechanical Ultrasound for Particle Dispersion in Liquid Metals |
| Author(s) |
Imants Kaldre, Andris Bojarevics |
| On-Site Speaker (Planned) |
Imants Kaldre |
| Abstract Scope |
It is known that acoustic cavitation is one of the mechanisms for small particle dispersion in metal alloys. In our previous work we analyzed contactless electromagnetic method to disperse particles by superimposed AC and DC magnetic fields. Also use of pulsed magnetic field was tested experimentally. Promising results were obtained in lab scale for some metal/particle pairs like Al/SiC and FeCr/TiN.
In this work we present the investigation of electromagnetic ultrasound combined by mechanical ultrasound. Such combined method allows to achieve strong ultrasound and simultaneously significant stirring of the melt. This could be an alternative to two stage process where particle doped initial sample is prepared by stirring or powder metallurgy, which is then melted and treated with ultrasound to disperse individual particles. |
| Proceedings Inclusion? |
Planned: |