Effects of Conical Transition Section on Microstructure of a Ni3Al-Base Single Crystal Superalloy IC6SX

Abstract:

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Ni3Al based single crystal alloy IC6SX was prepared by election spiral crystal method. The effect of the conical transition section of the single crystal on the microstructure of the single crystal was studied in this work. The results showed that, in the crystal growth process, the effect of the conical transition section on the orientation of single crystal was significant. The yield ratio of the single crystal alloy specimen with <001> orientation could be improved significantly by adding cone transition section. With the angle of the cone transition section increasing from 20 º to 43 º, the dendrite arm spacing increased gradually, and dendrite morphology was coarsened and the third dendrite arm appeared.

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Periodical:

Edited by:

Yafang Han, Tianmin Wang and Shaoxiong Zhou

Pages:

214-218

DOI:

10.4028/www.scientific.net/MSF.650.214

Citation:

L. W. Jiang et al., "Effects of Conical Transition Section on Microstructure of a Ni3Al-Base Single Crystal Superalloy IC6SX", Materials Science Forum, Vol. 650, pp. 214-218, 2010

Online since:

May 2010

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$35.00

[1] H. Esaka, K. Shinozuka, M. Tamura. Analysis of single crystal casting process taking into account the shape of pigtail. Materials Science and Engineering A, 413-414 (2005) 151-155.

DOI: 10.1016/j.msea.2005.08.154

[2] A. Wagner1, B.A. Shollock, M. McLean. Grain structure development in directional solidification of nickel-base superalloys. Materials Science and Engineering A, 374 (2004) 270-279.

DOI: 10.1016/j.msea.2004.03.017

[3] R.Z. CHEN, L.B. WANG, J.H. LI, Review and prospect on developments of cast superalloys, Journal of Aeronautical Materials, 2000 , 20 (1) : 55 - 61.

[4] Q. ZHENG, G.C. HOU, W.M. TIAN, et al. Grain selection behavior of single crystal superalloy, 2001, Vol. 11, 176-178.

[5] H.J. Dai, J-C. Gebelin, M. Newell, et al. Grain selection during solidification in spiral grain selector, Supperalloy 2008, TMS, 367~374.

DOI: 10.7449/2008/superalloys_2008_367_374

[6] T. Okamoto and K. Kishitake, Dendritic structure in unidirectionally solidified aluminum, tin, and zinc base binary alloys, Journal of Crystal Growth, Volume 29, Issue 2, June 1975, Pages 137-146 Ceramic membrance shell Heat flux direction Solid liquid interface Solidified phase.

DOI: 10.1016/0022-0248(75)90217-1

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