Impact of heat transfer on spheroidization of titanium alloys

  • W A Seya Tshwane University of Technology
  • A Kolesnikov Tshwane University of Technology
  • I J Van Der Walt The South African Nuclear Energy Corporation SOC Ltd
  • H Bissett The South African Nuclear Energy Corporation SOC Ltd
Keywords: Spheroidization, heat transfer, radiation energy loss

Abstract

The industrial application of the spheroidization process using high-temperature plasma is regarded as a good method for the conversion of irregularly shaped particles into a spherica shape. High temperature and controlled plasma conditions are required to obtain satisfactory results. Given this, a 3D model was used to simulate heat transfer from a source term to titanium-alloy particles using ANSYS Fluent software. Such models consider the effects of particle treatment on thermodynamic and transport properties of the plasma. This present study aims to investigate the impact of heat transfer on the particles and the effect of radiation energy loss on the particles, using numerical analysis. The results showed that the operating condition such mass flow was inversely proportional to the rate of heat transfer between plasma particles and the characteristics of the plasma gas, which was due to significant variation in radiation energy losses.

Author Biographies

W A Seya, Tshwane University of Technology

Department of Chemical, Metallurgical and Material Engineering, Tshwane University of Technology, Pretoria 0185, South Africa

A Kolesnikov, Tshwane University of Technology

Department of Chemical, Metallurgical, and Material Engineering, Tshwane University of Technology, Pretoria 0185, South Africa

I J Van Der Walt, The South African Nuclear Energy Corporation SOC Ltd

The South African Nuclear Energy Corporation SOC Ltd. (Necsa), Elias Motsoaledi Street Extension (Church Street West) R104 Pelindaba, Madibeng Municipality, North West Province, 0240, South Africa

H Bissett, The South African Nuclear Energy Corporation SOC Ltd

The South African Nuclear Energy Corporation SOC Ltd. (Necsa), Elias Motsoaledi Street Extension (Church Street West) R104 Pelindaba, Madibeng Municipality, North West Province, 0240, South Africa

Published
2022-02-15
How to Cite
Seya, W., Kolesnikov, A., Van Der Walt, I., & Bissett, H. (2022). Impact of heat transfer on spheroidization of titanium alloys. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt;, 40(1), 274-277. Retrieved from http://satnt.co.za/index.php/satnt/article/view/919
Issue
Vol 40 No 1 (2021)
Section
Conference of the South African Advanced Materials Initiative