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日本金属学会誌
Vol. 70 (2006) No. 8 P 682-685

記事言語:

http://doi.org/10.2320/jinstmet.70.682


  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.

Copyright © 2006 (公社)日本金属学会

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