Characterization of Dendrite Morphology for Evaluating Interdendritic Fluidity Based on Phase-field Simulation
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概要
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Evolution of dendrite morphology in Fe-base alloys was simulated by using the phase-field method and complexity of the dendrite morphology was evaluated by fractal dimensions and dimensionless perimeter of dendrites. It was shown that the both parameters of the fractal dimension and the dimensionless perimeter are effective to evaluate the complexity of dendrites. Factors controlling the dendrite morphology such as materials properties, composition and cooling rate were investigated by the simulation. Permeability of simulated dendrite array was estimated from the fractal dimension and the dimensionless perimeter, and obtained permeability corresponded to reported values of the permeability for metallic alloy systems.
- 社団法人 日本鉄鋼協会の論文
- 2009-01-15
著者
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OHSASA Kenichi
Graduate School of Engineering, Hokkaido University
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Ohsasa Kenichi
Graduate School Of Engineering Hokkaidou Univ.
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Ohsasa Kenichi
Graduate School Of Engineering Hokkaido University
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ISHIDA Hitoshi
Kobe Steel Ltd.
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NATSUME Yukinobu
Kobe Steel Ltd.
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Ohsasa Kenichi
Dep. Of Materials Sci. And Engineering Akita Univ.
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Natsume Yukinobu
Materials Res. Lab. Kobe Steel Ltd.
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Ishida Hitoshi
Materials Res. Lab. Kobe Steel Ltd.
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