Paper Title:
Phase Field Simulation of Rafting Behavior of γ`Phase in Nickel Base Superalloy
  Abstract

This paper describes phase field simulations of the rafting behavior of γ’ phase with a simple interfacial dislocation network model. The interfacial dislocation network model accounts for the effect of the network on the lattice misfit between γ and γ’ phases and the subsequent rafting behavior. The model is implemented into the phase field simulation to see the dependence of the rafting behavior of γ’ phases on the interfacial dislocation network. Without the dislocation network model, the amount of the rafting was negligibly small. On the other hand, with the dislocation network model, the γ’ phases shows a large amount of rafting, which is in good agreement with the results of the experimental observations. Therefore, the combination of the phase field method and the simple interfacial dislocation network model developed in this work is appropriate for the simulation of the rafting of γ’ phases.

  Info
Periodical
Advanced Materials Research (Volumes 33-37)
Edited by
Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
Pages
471-476
DOI
10.4028/www.scientific.net/AMR.33-37.471
Citation
A. Takahashi, Y. Kobayashi, M. Kikuchi, "Phase Field Simulation of Rafting Behavior of γ`Phase in Nickel Base Superalloy", Advanced Materials Research, Vols. 33-37, pp. 471-476, 2008
Online since
March 2008
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Price
$32.00
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