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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

材料科学技术（英）

The solid/liquid interface of a directionally solidified Ni-base superalloy with different phosphorus contents was quantitatively described by means of fractat method.When the solidification rate was fixed,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 was discussed.

关键词: fractal description , null , null , null