publication . Article . 2017

Numerical Simulation of Spheroidization Process of TiAl Alloy Powders in Radio Frequency Plasma

ZHU Langping; LU Xin; LIU Chengcheng; LI Jianchong; NAN Hai;
Open Access Chinese
  • Published: 01 Jun 2017 Journal: Journal of Aeronautical Materials (issn: 1005-5053, eissn: 1005-5053, Copyright policy)
  • Publisher: Journal of Aeronautical Materials
Abstract
A numerical simulation method was used to study the radio frequency plasma spheroidization process of TiAl alloy powder. The effects of velocity field and temperature field on the motion trajectory and mass change of TiAl alloy powder with different particle size were analyzed.The results show that the temperature of powder particles increases rapidly under high temperature plasma, surface evaporation cause the reduction of particle size, and particles with small size tend to evaporate quickly. The motion trajectory of particles with different sizes in the lower end of the cooling tube is different obviously, small particles tend to enter the air outlet,while th...
Subjects
arXiv: Condensed Matter::Materials Science
free text keywords: radio frequency plasma, spheroidization, numerical simulation, TiAl alloy, powder, Motor vehicles. Aeronautics. Astronautics, TL1-4050
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