Paper Title:
The Study on Heat Transfer and Solidification of Uniform Droplet Formed from Jet Breakup
  Abstract

An experimental device capable of producing uniform metal droplet stream and electric charging and deflecting has been developed. Uniform spherical powder of 180μm in diameter was obtained after cooling and solidification. Numerical models of heat transfer and solidification of droplets were established. The thermal history including solid fraction of droplets in uniform droplet spray process were calculated. Under the common processing conditions, the cooling rate of a droplet of 180μm diameter is of the order of 103−104°C/s. To obtain homogeneous and dense preforms, the substrate should be positioned at a distance of 1.1-1.3m from the nozzle.

  Info
Periodical
Chapter
Chapter 1: Materials Science and Engineering
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
519-523
DOI
10.4028/www.scientific.net/AMM.121-126.519
Citation
S. D. Gao, Y. Wang, H. B. Wang, Y. Wu, "The Study on Heat Transfer and Solidification of Uniform Droplet Formed from Jet Breakup", Applied Mechanics and Materials, Vols. 121-126, pp. 519-523, 2012
Online since
October 2011
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Price
$32.00
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