한국분말야금학회:학술대회논문집 (Proceedings of the Korean Powder Metallurgy Institute Conference)
- 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part 1
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- Pages.70-71
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- 2006
Model Calculation of Grain Growth in a Liquid Matrix
- Jung, Yang-Il (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
- Yoon, Duk-Yong (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
- L.Kang, Suk-Joong (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology)
- 발행 : 2006.09.24
초록
Growth behavior and kinetics of grains in a liquid matrix has been studied by computer simulation for various physical and processing conditions. The kinetics of growing and dissolving grains were considered to follow those of single crystals in a matrix. Depending on the shape of crystals, rounded or faceted, different kinetic equations were adopted for growing grains and an identical equation for dissolving grains. Effects of such critical parameters as step free energy, temperature, and liquid volume fraction were evaluated.