[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.12656/jksht.2015.28.2.82

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))

Publication Information

Journal of the Korean Society for Heat Treatment / v.28, no.2, 2015 , pp. 82-86 More about this Journal

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.

Keywords

Titanium aluminides; Directional solidification; Temperature gradient of FZ furnace; Bridgman type DS furnace;

Citations & Related Records

Reference

1	X. F. Ding, J. P. Lin, L. Q. Zhang, Y. Q. Su, G. L. Chen : Intermetallics, 19 (2011) 1115-1119. DOI
2	X. F. Ding, J. P. Lin, L. Q. Zhang, Y. Q. Su, H. L. Wang, G. L. Chen : Scipta Materialia 65 (2011) 61-64. DOI
3	X. F. Ding, J. P. Lin, L. Q. Zhang, Y. Q. Su, G. L. Chen : Acta Materialia, 60 (2012) 498-506. DOI
4	W. Kurz, D. J. Fisher : Fundamentals of Solidification, Trans Tech Publications Switzerland, (1989) 63.
5	J. Tang, B. Huang, K. Zhou, W. Liu, Y. He, Y. Liu : Mater. Sci. Bul., 36 (2001) 1737-1742.
6	Y. W. Kim : Workshop on Gamma TiAl Alloys, J. J. Kim and H. H. Jung(Ed.), CAAM Seoul, (1996) 13.
7	H. Umeda, K. Kishida, H. Inui, M. Yamaguchi : Mater. Sci. Eng. A, 239-240 (1997) 336-341. DOI
8	I. S. Jung, M. C. Kim, J. H. Lee, M. H. Oh, D. M. Wee : Intermetallics, 7 (1999) 1247-1253. DOI
9	H. N. Lee, D. R. Johnson, H. Inui, M. H. Oh, D. M. Wee, M. Yamaguchi : Acta Mater., 48 (2000) 3221-3233. DOI
10	I. S. Jung, H. S. Jang, J. H. Lee, M. H. Oh, D. M. Wee : Mater. Sci. Eng. A, 329-331 (2002) 13-18. DOI
11	X. F. Ding, J. P. Lin, L. Q. Zhang, H. L. Wang, J. Hao, G. L. Chen : J. Alloys and Compounds, 506 (2010) 115-119. DOI
12	J. Lain, Z. Gabalcova : Intermetallics, 19 (2011) 797-804. DOI