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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Materials Processing Fundamentals
Presentation Title Ultrasonics in Levitating Droplets
Author(s) Catherine E H Tonry, Valdis Bojarevics, Georgi Djambazov, Andrew Kao, Koulis Pericleous
On-Site Speaker (Planned) Catherine E H Tonry
Abstract Scope High frequency electromagnetic coils can be used to induce ultrasound in liquid metals, due to the induced currents interacting with the magnetic fields. With resonant conditions, these acoustic pressures can be so large as to affect the evolving microstructure during solidification. This has been demonstrated in traditional casting techniques; however, this phenomenon has not been explored in levitated droplets of mm scale. At this smaller length scale the resonant frequency is on the order of 100 kHz, which is in the range of frequencies used by the levitating coil. This work investigates the conditions for ultrasound inside levitating droplets, whether it is possible for cavitation to occur, and if this can influence undercooled solidification. Preliminary numerical modelling results suggest typical conditions used for levitating droplets are close to these resonant conditions and therefore small changes to existing experiments could potentially lead to a new scientifically interesting avenue of study.
Proceedings Inclusion? Planned:
Keywords Computational Materials Science & Engineering, Modeling and Simulation,

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Anomalous Temperature Effect on Diffusion-controlled Solidification Time during Diffusion Brazing
Comprehensive Recovery of Pressure Acid Leaching Residue of Zinc Sulfide Concentrate
Effect of Laser Heat Treatment and Nitrogen Content in Shielding Gas on Precipitation of Widmanstätten Austenite in Lap Laser Welds of Duplex Stainless Steels
Evaluation of Phase Relations for the Al-Cu-Mg-Si-Zn System around Eutectic Composition
Experimental Phase Diagram Study in CaO-MgO-V2O5 System
F-33: Phase Equilibria in the Ag–Ge–Bi–Te System and Thermodynamic Properties of the nGeTe×mBi2Te3 (n, m = 1-4) Layered Compounds
Finite Element Analysis Modeling of Gravity-driven Multiple Effect Thermal System (G-METS) Distillation for Efficient Low-cost Magnesium Refining
Measurement of Thermodynamic Property of Mg in Molten Iron at 1823 K by Transpiration Method
NOW ON-DEMAND ONLY – Strategies for the Upgrade of a TBZC Product (Tetra Basic Zinc Chloride) by Selective Removal of the Impurity Chlorine
Parametric Study of Mold Electromagnetic Stirring: Effects of Load Condition and Copper Resistivity
Phase and Microstructural Analysis of In-situ Derived Alumina-TiB2 Composites
Potentiostatic Electrodeposition of Ti-Al Alloy with 40% Titanium from the Lewis Acidic 1-butyl-3-methylimidazolium Chloride-aluminum Chloride Ionic Liquid Electrolyte
Prediction of Distribution of Composition of Inclusion in Continuous Casting Bloom of the Heavy Rail Steel Coupling Element Segregation, Heat Transfer and Kinetics
Pulsed Electric Current Joining of Oxide-dispersion-strengthened Austenitic Steels
Site Preference of Ti in 6H-SiC: A Combined Photoluminescence and Theoretical Calculation Study
Study of γ'-Fe4N Material Annealing through Molecular Dynamics Modeling
Study on the Interface Structure and Element Distribution of Manganese-containing Slag
Thermodynamic Properties of Sulfur in the CaO–AlO1.5–CeO1.5 Slag System at 1873 K
Thermoelectric Magnetohydrodynamic Control of Melt Pool Dynamics and Microstructure Evolution in Direct Energy Deposition Additive Manufacturing
Time Variation of Concentration-dependent Interdiffusion Coefficient
Ultrasonics in Levitating Droplets
Voltammetric Investigations of the Dissolution of Copper in Acidic Cupric Chloride Solutions Containing Additional Dissolved Cuprous Ions

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