冷却固体面の浸漬過程における凝固シェルの形成過程

概要

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This paper investigates the solidified-shell formation process during the dipping process of a cooled solid surface into a melt pool. Since the shell formation process during this dipping process is related to the dynamic behavior of the meniscus contact line, the solidification process may be different from the usual solidification process on a stagnant cooled surface. The solidified shell obtained in this experiment has many surface defects on the surface. The results from visual observation of the shell formation process show that the shell does not grow continuously in the casting direction but is formed as a vertical pile of the horizontal shell units resulting from the following sequential process ; collapse of the meniscus, appearance of a locally solidified shell and propagation of the local shell along the contact line. Experimental results indicate that the formation of the surface defects is considered to relate to this dynamic process.
一般社団法人日本機械学会の論文
1994-12-25