Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Temperature Gradient Estimation of Floating Zone Furnace by Mean Lamellar Spacing Measurement in DS-processed TiAl Alloys

  • Jung, I.S. (Department of Materials Science and Engineering, KAIST) ;
  • Park, Jong-Moon (School of Materials Science and Engineering, Kumoh National Institute of Technology (KIT)) ;
  • Wee, D.M. (Department of Materials Science and Engineering, KAIST) ;
  • Oh, Myung-Hoon (School of Materials Science and Engineering, Kumoh National Institute of Technology (KIT))
  • Received : 2015.03.03
  • Accepted : 2015.03.27
  • Published : 2015.03.31
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Abstract

In this study, the temperature gradient of a floating zone (FZ) apparatus, which is very difficult to directly measure, could be estimated by using the relationships between the lamellar spacing of directionally solidified TiAl alloys and the solidification rate, It was found that the calculated temperature gradient of the FZ apparatus was much higher, and almost ten times higher than that of a Bridgman type directional solidification apparatus.

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References

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