摘要
The size, morphology and dispersion of γ′ precipitates affect the creep behaviors of Ni-base single-crystal superalloys. Phase-field modeling is powerful tool to predict such microstructure evolution. In this research, the Gibbs-free-energy function of γ and γ′ phases in the ternary Ni-Al-Cr system with a four-sublattice model was introduced to extend the phase-filed simulation of γ/γ′-microstructure-evolution to the ternary system. The values of γ/γ′-phase-compositions were in good agreements with the estimation of Dupin's CALPHAD method.
源语言 | 英语 |
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页(从-至) | 682-685 |
页数 | 4 |
期刊 | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
卷 | 70 |
期 | 8 |
DOI | |
出版状态 | 已出版 - 8月 2006 |