About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Additive Manufacturing of Refractory Metallic Materials
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Presentation Title |
Numerical Simulation of Radio-Frequency Inductively Coupled Plasma Spheroidization of Tungsten Powder: Effects of Flow Field, Particle Trajectory and Surface Tension |
Author(s) |
Shashank Sharma, Jitesh Kumar, Ishtiaq Ahmed F Rabbi, Dussa Saikumar, Sameehan S Joshi, Narendra B Dahotre |
On-Site Speaker (Planned) |
Shashank Sharma |
Abstract Scope |
The current study involved a finite element (FE) multiphysics numerical model to understand the radio-frequency (RF) inductively coupled plasma (ICP) spheroidization process of high melting point refractory material such as tungsten. A discrete phase model coupled with Reynolds-Averaged Navier-Stokes (RANS) turbulent fluid flow was employed to investigate the flow behavior, temperature evolution, and particle trajectory. The effects of varying plasma power in the 10-14 kW range and feed rate between 6-20 g/min on the spheroidization process were analyzed based on the experiments executed on TEKSpeher-15, TEKNAŠ. The flow field and temperature distribution from the discrete phase model were coupled with a microscale multiphase thermo-fluidic model to examine the melt pool dynamics of tungsten particles of different size ranges. The model results provided comprehensive insights into the influence of surface tension on the spheroidization process. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Modeling and Simulation, Powder Materials |