Abstract The effect of interaction among $\gamma'$ ordered domains on the interdiffusion process in $\gamma$ + $\gamma'$ /$\gamma$ and $\gamma$ +$\gamma'$ /$\gamma$ +$\gamma'$ diffusion couples is investigated by using the phase-field method, in which bulk free energy and mobility are linked with thermodynamic and kinetic databases. Simulated results show that the interaction among $\gamma'$ ordered domains has great influence on the microstructure, the interdiffusion velocity and the volume fraction of $\gamma'$ phase on both sides of the diffusion couples.
Received: 08 January 2009
Revised: 09 April 2009
Accepted manuscript online:
Fund: Project supported by
the National Natural Science Foundation of China (Grant No 50401013)
and the National Defense Pre-research Foundation of China (Grant No
9140A12020108HK0333).
Cite this article:
Zhang Yu-Xiang(张玉祥), Wang Jin-Cheng(王锦程), Yang Yu-Juan(杨玉娟), Yang Gen-Cang(杨根仓), and Zhou Yao-He(周尧和) Phase-field simulation of the effect of interaction among ordered domains on interdiffusion in Ni--Al--Cr alloys 2009 Chin. Phys. B 18 4407
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