Abstract
A self-consistent creep damage constitutive model and a finite element model have been developed for nickel-base directionally solidified superalloys. Grain degradation and grain boundary voiding are considered. The model parameters are determined from the creep test data of a single crystal and a directionally solidified superalloy with a special crystallographic orientation. The numerical analysis shows that the modeled creep damage behaviors of nickel-base directionally solidified superalloys with different crystallographic orientations are in good agreement with the experimental data.
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Communicated by Luo Haian
Project supported by the National Natural Science Foundation of China (59501009) and Opening Research Foundation of National Key Laboratory in Xi'an Jiaotong University
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Zhufeng, Y., Zhenzhou, L. & Changqing, Z. Meso approaches for the creep damage behavior of nickel-base directionally solidified superalloys. Appl Math Mech 20, 186–192 (1999). https://doi.org/10.1007/BF02481898
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DOI: https://doi.org/10.1007/BF02481898