Microstructure evolution of the k4169 superalloy blade based on cellular automaton simulation

  • Authors:

  • Xin Yan;Zhilong Zhao;Weidong Yan;Lin Liu

  • Affiliations:

  • Northwestern Polytechnical University, Xi'an, P. R. China;Northwestern Polytechnical University, Xi'an, P. R. China;Northwestern Polytechnical University, Xi'an, P. R. China;Northwestern Polytechnical University, Xi'an, P. R. China

  • Venue:
  • ICNC'05 Proceedings of the First international conference on Advances in Natural Computation - Volume Part III
  • Year:
  • 2005

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Abstract

A two-dimensional cellular automaton model has been developed to simulate the process of microstructure evolution of K4169 superalloy blade produced by investment casting. The dynamic process of grain-structure formation of the blade castings without chemical refiner or with refiner during solidification can be observed real-time on the computer. A CA model coupling micro-kinetics with macro-thermal transfer is adopted to calculate the feature of grain microstructure. The results show that the simulated grain structure is in good agreement with optical micrographs.