鋼塊の V 偏析におよぼすサクションの効果について

概要

論文の詳細を見る
In order to investigate the mechanism of formation of V segregation, molten steel weighing 10 to 20kg were cast into special shaped sand molds under given conditions influencing upon the occurence mode of V segregation, and observation of macro structure was made on V segregation appearing in each ingots. The mechanism of formation of V segregation was discussed from the observed results. The results obtained were summarized as follows ; 1) V segregation is found to be formed in the so-called accelerated solidification zone by the effect of the suction. 2) The suction may be defined as the flow of mushy state to feed solidification shrinkage. 3) The fluidity of mushy state is not so good to fill up easily the solidification shrinkage, so periodical gap might be formed, into which the concentrated melt around them flows. 4) The velocity of the flow would be greatest at axial center and it decreased near the side wall. Consequently, the gap become slant to the axis to form V shape.
社団法人日本鉄鋼協会の論文
1973-10-01