Paper Title:
Interface Morphologies and Microstructure of a Single Crystal Superalloy under High Thermal Gradient Directional Solidification
  Abstract

The interface morphologies single crystal superalloys CMSX-2 has been studied over a range of cooling rate with large variations in withdrawal speed in directional solidification. The superfine cellular structure was obtained under both high thermal gradient up to 1000K/cm and fast withdrawal rate up to 1mm/sec. The high rate directional solidification results in reduction in primary and secondary dendrite arm spacing, refinement of λ’ phase, reduced microsegregation of alloying elements and smaller size of γ-γ’ eutectics.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
665-668
DOI
10.4028/www.scientific.net/MSF.475-479.665
Citation
L. Liu, J. Zhang, T. Hang, H. Z. Fu, "Interface Morphologies and Microstructure of a Single Crystal Superalloy under High Thermal Gradient Directional Solidification", Materials Science Forum, Vols. 475-479, pp. 665-668, 2005
Online since
January 2005
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$32.00
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