Fractal Description of the Solid/Liquid Interface of a Directionally Solidified Superalloy with Different Phosphorus Content

Liling SUN Lianke DONG Jinghua ZHANG Zhuangqi HU Institute of Metal Research,Academia Sinica,Shenyang,110015,China

摘 要：<正> The solid/liquid interface of a directionally solidified Ni-base superalloy with different phosphoruscontents was quantitatively described by means of fractat method.When the solidification rate wasfixed,the relationship between the fractal dimensionality of the solid/liquid interface and the phos-phorus content of the test alloy was given.Combined the thermodynamics and fractal theory,the ef-fect mechanism of phosphorus content on fractal dimensionality of the solid/liquid interface wasdiscussed.

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