Negative Segregation due to Bulk Liquid Flow during Solidification of Alloy

抄録

A formula has been derived which predicts the degree of negative segregation due to bulk liquidfow during solidification of alloys. The formula includes the alloy composition, the primary dendrite-arm spacing and the width o f the mushy zone as well as the solidification condition and the bulk flow rate. It is ascertained that the formula can be applied both to aluminum-copper alloys solidified unidirectionally from a copper chill face under flow conditions and to continuously cast high carbon steels electromagnetically stirred during their solidification.