大型鋼塊負偏析部 (通称沈殿晶部) の生成機構とこの部分に発現する酸化物系大型介在物の成因について
1967 年 53 巻 13 号 p. 1477-1508
詳細
1967 年 53 巻 13 号 p. 1477-1508
In order to investigate the mechanism of formation of negative segregated zone inside large steel ingots and the origin of macroscopic-oxide inclusions appeared in this zone, a series of experiments on which 3 t sand steel ingots were used was studied.
As a result, it was presumed that their formations are due to the following three points:
i) The decrease of effective distribution coefficient connected with the delay of solidification.
ii) The solidification over wide extent in negative segregated zone.
iii) The floatation of concentrated molten steel.
