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The three-dimensional reconstruction of the dendritic structure at the solid-liquid interface of a Ni-based single crystal

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Abstract

Directional solidification of nickel-based single crystals requires control of the heat transfer, fluid flow, and phase transformations at the solid-liquid interface during withdrawal in the Bridgman process. While the morphological details of the dendritic structure at the solid-liquid interface influence defect formation processes, there is an incomplete understanding of this structure as a function of alloy composition and processing conditions. A three-dimensional serial sectioning and image reconstruction approach for characterization of the solidification front has been developed and structural characteristics of the dendritic structure are quantified.

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Authors and Affiliations

  1. Materials Science and Engineering Department, University of Michigan, Ann Arbor, MI, 48109, USA

    J. Madison & T. M. Pollock

  2. Air Force Research Laboratory/RXLM, Wright-Patterson AFB, Dayton, OH, 45433-7817, USA

    J. E. Spowart

  3. Naval Research Laboratory, Washington, DC, 20375, USA

    D. J. Rowenhorst

Authors
  1. J. Madison
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  2. J. E. Spowart
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  3. D. J. Rowenhorst
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  4. T. M. Pollock
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Correspondence to J. Madison.

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Madison, J., Spowart, J.E., Rowenhorst, D.J. et al. The three-dimensional reconstruction of the dendritic structure at the solid-liquid interface of a Ni-based single crystal. JOM 60, 26–30 (2008). https://doi.org/10.1007/s11837-008-0085-0

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  • DOI: https://doi.org/10.1007/s11837-008-0085-0

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